{"collection":{"name":"HIFLD","description":"HIFLD (Homeland Infrastructure Foundation-Level Data) datasets","id":1,"slug":"hifld","created_at":"2026-02-13T02:52:43.921817","updated_at":"2026-02-13T02:52:43.921841"},"datasets":[{"name":"119th Congressional Districts","slug":"119th-congressional-districts","tags":{"inventory_name":"119th-congressional-districts","categories":["Borders","Boundaries","Government"]},"created_at":"2026-02-15T07:07:20.609487","updated_at":"2026-02-15T07:07:20.609510","id":3412,"description":"Congressional districts are the 444 areas from which people are elected to the U.S. House of Representatives. After the apportionment of congressional seats among the states based on census population counts, each state is responsible for establishing congressional districts for the purpose of electing representatives. Each congressional district is to be as equal in population to all other congressional districts in a state as practicable.The 119th Congress is seated from January 2023 through December 2024. In Connecticut, Illinois, and New Hampshire, the Redistricting Data Program (RDP) participant did not define the congressional districts to cover all of the state or state equivalent area. In these areas with no congressional districts defined, the code \"ZZ\" has been assigned, which is treated as a single congressional district for purposes of data presentation. The TIGER/Line data for the District of Columbia, Puerto Rico, and the Island Areas (American Samoa, Guam, the Commonwealth of the Northern Mariana Islands, and the U.S. Virgin Islands) each contain a single record for the non-voting delegate district in these areas. The boundaries of all other congressional districts reflect information provided to the Census Bureau by the states by August 31, 2022.Download: https://www2.census.gov/geo/tiger/TGRGDB24/tlgdb_2024_a_us_legislative.gdb.zip Layer: Congressional_DistrictsMetadata: https://meta.geo.census.gov/data/existing/decennial/GEO/GPMB/TIGERline/Current_19115/series_tl_2023_cd118.shp.iso.xml","collection_id":1,"links":{"self":"https://hifld.publicenvirodata.org/api/collections/hifld/datasets/119th-congressional-districts"}},{"name":"12NM Territorial Sea","slug":"12nm-territorial-sea","tags":{"inventory_name":"12nm-territorial-sea","categories":["Borders","Boundaries","Water Supply"]},"created_at":"2026-02-15T06:41:12.792470","updated_at":"2026-02-15T06:41:12.792490","id":3034,"description":"NOAA is responsible for depicting on its nautical charts the limits of the 12 nautical mile Territorial Sea, 24 nautical mile Contiguous Zone, and 200 nautical mile Exclusive Economic Zone (EEZ). The outer limit of each of these zones is measured from the U.S. normal baseline, which coincides with the low water line depicted on NOAA charts and includes closing lines across the entrances of legal bays and rivers, consistent with international law. The U.S. baseline and associated maritime limits are reviewed and approved through the interagency U.S. Baseline Committee, which is chaired by the U.S. Department of State. The Committee serves the function of gaining interagency consensus on the proper location of the baseline using the provisions of the 1958 Convention on the Territorial Sea and the Contiguous Zone, to ensure that the seaward extent of U.S. maritime zones do not exceed the breadth that is permitted by international law. In 2002 and in response to mounting requests for digital maritime zones, NOAA launched a project to re-evaluate the U.S. baseline in partnership with other federal agencies via the U.S. Baseline Committee. The focus of the baseline evaluation was NOAA's largest scale, most recent edition nautical charts as well as supplemental source materials for verification of certain charted features. This dataset is a result of the 2002-present initiative and reflects a multi-year iterative project whereby the baseline and associated maritime limits were re-evaluated on a state or regional basis. In addition to the U.S. maritime limits, the U.S. maritime boundaries with opposite or adjacent countries as well as the US/Canada International Boundary (on land and through the Great Lakes) are also included in this dataset. Direct data download | Metadata NOAA OCS U.S. Maritime Limits & Boundaries","collection_id":1,"links":{"self":"https://hifld.publicenvirodata.org/api/collections/hifld/datasets/12nm-territorial-sea"}},{"name":"200NM EEZ and Maritime Boundaries","slug":"200nm-eez-and-maritime-boundaries","tags":{"inventory_name":"200nm-eez-and-maritime-boundaries","categories":["Borders","Boundaries","Water Supply"]},"created_at":"2026-02-15T06:41:09.713547","updated_at":"2026-02-15T06:41:09.713597","id":3033,"description":"NOAA is responsible for depicting on its nautical charts the limits of the 12 nautical mile Territorial Sea, 24 nautical mile Contiguous Zone, and 200 nautical mile Exclusive Economic Zone (EEZ). The outer limit of each of these zones is measured from the U.S. normal baseline, which coincides with the low water line depicted on NOAA charts and includes closing lines across the entrances of legal bays and rivers, consistent with international law. The U.S. baseline and associated maritime limits are reviewed and approved through the interagency U.S. Baseline Committee, which is chaired by the U.S. Department of State. The Committee serves the function of gaining interagency consensus on the proper location of the baseline using the provisions of the 1958 Convention on the Territorial Sea and the Contiguous Zone, to ensure that the seaward extent of U.S. maritime zones do not exceed the breadth that is permitted by international law. In 2002 and in response to mounting requests for digital maritime zones, NOAA launched a project to re-evaluate the U.S. baseline in partnership with other federal agencies via the U.S. Baseline Committee. The focus of the baseline evaluation was NOAA's largest scale, most recent edition nautical charts as well as supplemental source materials for verification of certain charted features. This dataset is a result of the 2002-present initiative and reflects a multi-year iterative project whereby the baseline and associated maritime limits were re-evaluated on a state or regional basis. In addition to the U.S. maritime limits, the U.S. maritime boundaries with opposite or adjacent countries as well as the US/Canada International Boundary (on land and through the Great Lakes) are also included in this dataset. Direct data download | Metadata NOAA OCS U.S. Maritime Limits & Boundaries","collection_id":1,"links":{"self":"https://hifld.publicenvirodata.org/api/collections/hifld/datasets/200nm-eez-and-maritime-boundaries"}},{"name":"2020 Census Blocks","slug":"2020-census-blocks-1","tags":{"inventory_name":"2020-census-blocks-1","categories":["Boundaries","Geonames","Government"]},"created_at":"2026-02-15T07:12:18.802549","updated_at":"2026-02-15T07:12:18.802572","id":3440,"description":"Blocks (Census Blocks) are statistical areas bounded by visible features, such as streets, roads, streams, and railroad tracks, and by non-visible boundaries, such as selected property lines and city, township, school district, and county limits, and short line-of-sight extensions of streets and roads. Generally, census blocks are small in area; for example, a block in a city bounded on all sides by streets. Census blocks in suburban and rural areas may be large, irregular, and bounded by a variety of features, such as roads, streams, and/or transmission line rights-of-way. In remote areas, census blocks may encompass hundreds of square miles. Census blocks cover the entire territory of the United States, Puerto Rico, and the Island Areas. Census blocks nest within all other tabulated census geographic entities and are the basis for all tabulated data.Download: https://www2.census.gov/geo/tiger/TGRGDB24/tlgdb_2024_a_us_block.gdb.zipMetadata: meta.geo.census.gov/data/existing/decennial/GEO/GPMB/TIGERline/Current_19115/series_tl_2023_tabblock20.shp.iso.xml","collection_id":1,"links":{"self":"https://hifld.publicenvirodata.org/api/collections/hifld/datasets/2020-census-blocks-1"}},{"name":"24NM Contiguous Zone","slug":"24nm-contiguous-zone","tags":{"inventory_name":"24nm-contiguous-zone","categories":["Borders","Boundaries","Transportation Water"]},"created_at":"2026-02-15T06:41:06.696438","updated_at":"2026-02-15T06:41:06.696461","id":3032,"description":"NOAA is responsible for depicting on its nautical charts the limits of the 12 nautical mile Territorial Sea, 24 nautical mile Contiguous Zone, and 200 nautical mile Exclusive Economic Zone (EEZ). The outer limit of each of these zones is measured from the U.S. normal baseline, which coincides with the low water line depicted on NOAA charts and includes closing lines across the entrances of legal bays and rivers, consistent with international law. The U.S. baseline and associated maritime limits are reviewed and approved through the interagency U.S. Baseline Committee, which is chaired by the U.S. Department of State. The Committee serves the function of gaining interagency consensus on the proper location of the baseline using the provisions of the 1958 Convention on the Territorial Sea and the Contiguous Zone, to ensure that the seaward extent of U.S. maritime zones do not exceed the breadth that is permitted by international law. In 2002 and in response to mounting requests for digital maritime zones, NOAA launched a project to re-evaluate the U.S. baseline in partnership with other federal agencies via the U.S. Baseline Committee. The focus of the baseline evaluation was NOAA's largest scale, most recent edition nautical charts as well as supplemental source materials for verification of certain charted features. This dataset is a result of the 2002-present initiative and reflects a multi-year iterative project whereby the baseline and associated maritime limits were re-evaluated on a state or regional basis. In addition to the U.S. maritime limits, the U.S. maritime boundaries with opposite or adjacent countries as well as the US/Canada International Boundary (on land and through the Great Lakes) are also included in this dataset. Direct data download | Metadata NOAA OCS U.S. Maritime Limits & Boundaries","collection_id":1,"links":{"self":"https://hifld.publicenvirodata.org/api/collections/hifld/datasets/24nm-contiguous-zone"}},{"name":"Above Ground LNG Storage Facilities","slug":"above-ground-lng-storage-facilities","tags":{"inventory_name":"above-ground-lng-storage-facilities","categories":["Energy","Agriculture","Commercial"],"geometry_type":"LineString"},"created_at":"2026-02-15T06:41:24.911968","updated_at":"2026-02-15T06:41:24.911991","id":3038,"description":"This feature class/shapefile represents Above Ground Liquefied Natural Gas Storage (AG_LNG) facilities. Above Ground Liquefied Natural Gas Storage facilities are used to provide Above Ground storage of LNG for multiple purposes, including but not limited to, Peak Shaving Plant operations, Agricultural CO-OP corn drying, manufacturing, vehicular fuel distribution, etc. In some of these cases, the Above Ground LNG storage facility is developed to provide the storage because it is not cost efficient for the natural gas suppliers to install natural gas pipeline for a single large user. This layer consists of LNG Above Ground Storage locations with the exclusion of LNG Import/Export Terminals which are already provided in another existing layer. Temporary or Mobile LNG storage is not included in this layer due to its transitory nature. Data contains locational and other attribute information for Above Ground Liquefied Natural Gas Storage facilities. Geographical coverage includes the continental United States, Alaska, and Hawaii.","collection_id":1,"links":{"self":"https://hifld.publicenvirodata.org/api/collections/hifld/datasets/above-ground-lng-storage-facilities"}},{"name":"Address Ranges","slug":"address-ranges","tags":{"inventory_name":"address-ranges","categories":["Geonames","Government"]},"created_at":"2026-02-15T07:10:04.377867","updated_at":"2026-02-15T07:10:04.377889","id":3434,"description":"Address ranges describe a label given to a unique collection of addresses that fall along a road or path. Address ranges provide a way of locating homes and businesses based on their street addresses when no other location information is available.Using a house number, street name, street side and ZIP code, address ranges can locate the address to the geographic area associated to that side of the street. Once geocoded, the U.S. Census Bureau can assign the address to a field assignment area or tabulate the data for that address. In addition, academics, researchers, professionals and government agencies outside of the Census Bureau use MAF/TIGER address ranges to transform tabular addresses into geographical datasets for decision-making and analytical purposes.Address ranges must be unique to geocode addresses to the correct location and avoid geocoding conflicts. Multiple elements in MAF/TIGER are required to make an address range unique including street names, address house numbers and street feature geometries, such as street centerlines. The address range data model is designed to maximize geocoding matches with their correct geographic areas in MAF/TIGER by allowing an unlimited number of address range-to-street feature relationships.The Census Bureau’s Geography Division devises numerous operations and processes to build and maintain high quality address ranges so that:Address ranges accurately describe the location of addresses on the ground.Address All possible city-style addresses are geocoded.Address ranges can handle all known address and street name variations.Address ranges conform with current U.S. Postal Service ZIP codes.Address ranges are reliable and free from conflicts.Automated software continually updates existing address ranges, builds new address ranges and corrects errors. An automated operation links address location points and tabular address information to street feature edges with matching street names in the same block to build and modify address ranges.Many business rules and legal value checks ensure quality address range data in MAF/TIGER. For example, business rules prevent adding or modifying address ranges that overlap another house number range with the same street name and ZIP code. Legal value checks verify that address ranges include mandatory attribute information, valid data types and valid character values.Some of the TIGER/Line products for the public include address ranges and give the public the ability to geocode addresses to MAF/TIGER address ranges for the user’s own purpose. The address range files are available for the nation, Puerto Rico and the U.S. Island Areas at the county level. TIGER/Line files require geographic information system (GIS) software to use.The Census Bureau Geocoder Service is a web service provided to the public. The service accepts up to 1,000 input addresses and, based on Census address ranges, returns the interpolated geocoded location and census geographies. Users can access the service a web interface or a representational state transfer (REST) application program interface (API) web service. See the Census Geocoder for more information on this process. Directions on how to use the Census Geocoder available: Geocoding Services Web Application Programming Interface (API)Download: https://www2.census.gov/geo/tiger/TGRGDB24/tlgdb_2024_a_us_addr.gdb.zip","collection_id":1,"links":{"self":"https://hifld.publicenvirodata.org/api/collections/hifld/datasets/address-ranges"}},{"name":"Administrative Areas (USACE IENC)","slug":"administrative-areas-usace-ienc","tags":{"inventory_name":"administrative-areas-usace-ienc","categories":["Transportation Water","Transportation Ground","Agriculture","Commercial","Chemicals","Food Industry"]},"created_at":"2026-02-15T06:41:03.670309","updated_at":"2026-02-15T06:41:03.670413","id":3031,"description":"The U.S. inland navigation system consists of of rivers maintained by the Corps of Engineers in 22 states, and includes 276 lock chambers with a total lift of 6,100 feet. The highly adaptable and effective system of barge navigation moves over 625 million tons of commodities annually, which includes coal, petroleum products, various other raw materials, food and farm products, chemicals, and manufactured goods. The shallow draft waterways have many unique characteristics and difficulties over coastal harbor and ocean navigation; river levels can change by over 30 feet in a seasonal cycle, the navigation channel can shift significantly within the river banks, and shifting yet ever present river currents pose constant challenges in these confined waterways. Electronic chart systems can offer significant benefits to vessels including accurate and real-time display of vessel position relative to waterway features, voyage planning and monitoring, training tools for new personnel and integrated display of river charts, radar, and Automatic Identification Systems.Following recommendations by the National Transportation Safety Board, the National Academy of Science and the American Waterways Operators, Congress directed the Corps of Engineers to develop and publish electronic charts for the inland waterways. Development of Inland Electronic Navigational Charts (IENCs) to cover the Mississippi River and tributaries thus began in 2001 with pilot projects on the Atchafalaya River in Louisiana and Lower Mississippi River near Vicksburg, Mississippi. These projects, which involved a combination of in-house and contract activities, were the first efforts to collect and convert inland waterway data, commonly used for river and channel maintenance, into the international S-57 hydrographic data exchange. This highly structured data format is commonly used for electronic chart applications and will be used for Corps IENCsAn S-57 database is extracted into an Esri File Geodatabase for publication. This is that geodatabase and it contains 99 feature classes that make up the IENC data.IENC_POC@usace.army.mil","collection_id":1,"links":{"self":"https://hifld.publicenvirodata.org/api/collections/hifld/datasets/administrative-areas-usace-ienc"}},{"name":"Agricultural Minerals Operations","slug":"agricultural-minerals-operations","tags":{"inventory_name":"agricultural-minerals-operations","categories":["Agriculture","Mining"]},"created_at":"2026-02-15T06:40:57.627947","updated_at":"2026-02-15T06:40:57.627971","id":3029,"description":"This map layer includes agricultural minerals operations in the United States. The data represent commodities covered by the Minerals Information Team (MIT) of the U.S. Geological Survey. The mineral operations are plants and (or) mines surveyed by the MIT and considered currently active in 2003. This is a replacement for the June 2004 map layer.The data is legacy and not expected to be updated. It is being provided as the best available until Mineral Resources identifies an alternative data source.","collection_id":1,"links":{"self":"https://hifld.publicenvirodata.org/api/collections/hifld/datasets/agricultural-minerals-operations"}},{"name":"Airport Area (USACE IENC)","slug":"airport-area-usace-ienc","tags":{"inventory_name":"airport-area-usace-ienc","categories":["Transportation Water","Boundaries","Commercial"]},"created_at":"2026-02-15T06:41:15.814838","updated_at":"2026-02-15T06:41:15.814858","id":3035,"description":"The USACE IENCs coverage area consists of 7,260 miles across 21 rivers primarily located in the Central United States. IENCs apply to inland waterways that are maintained for navigation by USACE for shallow-draft vessels (e.g., maintained at a depth of 9-14 feet, dependent upon the waterway project authorization). Generally, IENCs are produced for those commercially navigable waterways which the National Oceanic and Atmospheric Administration (NOAA) does not produce Electronic Navigational Charts (ENCs). However, Special Purpose IENCs may be produced in agreement with NOAA. IENC POC: IENC_POC@usace.army.mil","collection_id":1,"links":{"self":"https://hifld.publicenvirodata.org/api/collections/hifld/datasets/airport-area-usace-ienc"}},{"name":"Airspace Boundaries","slug":"airspace-boundaries-1","tags":{"inventory_name":"airspace-boundaries-1","categories":["Boundaries","Transportation Air"]},"created_at":"2026-02-15T06:40:54.637856","updated_at":"2026-02-15T06:40:54.637880","id":3028,"description":"The Airspace Boundary data is provided as a vector geospatial-enabled file format. Airspace Boundary data is published every eight weeks by the U.S. Department of Transportation, Federal Aviation Administration-Aeronautical Information Services. Current Effective Date: 0901Z 16 May 2024 to 0901Z 11 Jul 2024.","collection_id":1,"links":{"self":"https://hifld.publicenvirodata.org/api/collections/hifld/datasets/airspace-boundaries-1"}},{"name":"Alternative Fueling Stations","slug":"alternative-fueling-stations","tags":{"inventory_name":"alternative-fueling-stations","categories":["Energy","Transportation Ground"]},"created_at":"2026-02-15T06:40:50.400587","updated_at":"2026-02-15T06:40:50.400615","id":3027,"description":"The Alternative Fueling Stations dataset is updated daily from the National Renewable Energy Laboratory (NREL) and is part of the U.S. Department of Transportation (USDOT)/Bureau of Transportation Statistics (BTS) National Transportation Atlas Database (NTAD). For more information about the update cycle and data collection methods, please refer to https://afdc.energy.gov/stations/#/find/nearest?show_about=true. This dataset shows all station access types (public and private) and statuses (available, planned, and temporarily unavailable) by default. To view only publicly available stations, use the access and status filters. The U.S. Department of Energy collects these data in partnership with Clean Cities coalitions and their stakeholders to help fleets and consumers find alternative fueling stations. Clean Cities coalitions foster the nation's economic, environmental, and energy security by working locally to advance affordable, efficient, and clean transportation fuels and technologies. This data can be found on the Alternative Fuels Data Center: https://doi.org/10.21949/1519144. For more information about the data schema and data dictionary, please see https://developer.nrel.gov/docs/transportation/alt-fuel-stations-v1/all/#response-fields","collection_id":1,"links":{"self":"https://hifld.publicenvirodata.org/api/collections/hifld/datasets/alternative-fueling-stations"}},{"name":"American Indian / Alaska Native / Native Hawaiian (AIANNH) Areas","slug":"aiannh-areas-1","tags":{"inventory_name":"aiannh-areas-1","categories":["Borders","Boundaries","Government"],"geometry_type":"Polygon"},"created_at":"2026-02-15T06:41:00.641128","updated_at":"2026-02-15T06:41:00.641150","id":3030,"description":"Federal (federal AIRs) are areas that have been set aside by the United States for the use of tribes, the exterior boundaries of which are more particularly defined in the final tribal treaties, agreements, executive orders, federal statutes, secretarial orders, or judicial determinations. The Bureau of Indian Affairs maintains a list of all federally recognized tribal governments and makes final determination of the inventory federal AIRs. The Census Bureau recognizes federal reservations (and associated off-reservation trust lands) as territory over which American Indian tribes have primary governmental authority. American Indian reservations can be legally described as colonies, communities, Indian colonies, Indian communities, Indian rancheria, Indian reservations, Indian villages, pueblos, rancherias, ranches, reservations, reserves, settlements, or villages. The Census Bureau contacts representatives of American Indian tribal governments to identify the boundaries for federal reservations through its annual Boundary and Annexation Survey. Federal reservations may cross state and all other area boundaries.State (state AIRs) are reservations established by some state governments for tribes recognized by the state. A governor-appointed state liaison provides the names and boundaries for state-recognized American Indian reservations to the Census Bureau. State reservations must be defined within a single state, but may cross county and other types of boundaries. To further identify and differentiate state-recognized American Indian areas from those that are federally recognized, the text, \"(state)\" is appended to the AIR name.Off-Reservation Trust Lands are areas for which the United States holds title in trust for the benefit of a tribe (tribal trust land) or for an individual American Indian (individual trust land). Trust lands can be alienated or encumbered only by the owner with the approval of the Secretary of the Interior or his/her authorized representative. Trust lands may be located on or off a reservation; however, the Census Bureau tabulates data only for off-reservation trust lands with the off-reservation trust lands always associated with a specific federally recognized reservation and/or tribal government. As for federally recognized reservations, the Census Bureau obtains the boundaries of off-reservation trust lands from American Indian tribal governments through its annual Boundary and Annexation Survey. The Census Bureau recognizes and tabulates data for reservations and off-reservation trust lands because American Indian tribes have primary governmental authority over these lands. The Census Bureau does not identify fee land (or land in fee simple status) or restricted fee lands as specific geographic areas.Download: https://www2.census.gov/geo/tiger/TIGER2023/AIANNH/tl_2023_us_aiannh.zipMetadata: https://meta.geo.census.gov/data/existing/decennial/GEO/GPMB/TIGERline/Current_19115/series_tl_2023_aiannh.shp.iso.xml","collection_id":1,"links":{"self":"https://hifld.publicenvirodata.org/api/collections/hifld/datasets/aiannh-areas-1"}},{"name":"American Red Cross Chapter","slug":"american-red-cross-chapter-1","tags":{"inventory_name":"american-red-cross-chapter-1","categories":["Emergency Services","Public Health"]},"created_at":"2026-02-15T06:41:18.853909","updated_at":"2026-02-15T06:41:18.853929","id":3036,"description":"Generalized geospatial data pertaining to American Red Cross Chapter Regions","collection_id":1,"links":{"self":"https://hifld.publicenvirodata.org/api/collections/hifld/datasets/american-red-cross-chapter-1"}},{"name":"American Red Cross Counties / Chapters / Regions / Divisions","slug":"american-red-cross-counties-chapters-regions-divisions-1","tags":{"inventory_name":"american-red-cross-counties-chapters-regions-divisions-1","categories":["Emergency Services","Geonames","Government"]},"created_at":"2026-02-15T06:41:37.088714","updated_at":"2026-02-15T06:41:37.088738","id":3042,"description":"Generalized geospatial data pertaining to American Red Cross Counties","collection_id":1,"links":{"self":"https://hifld.publicenvirodata.org/api/collections/hifld/datasets/american-red-cross-counties-chapters-regions-divisions-1"}},{"name":"American Red Cross Divisions","slug":"american-red-cross-divisions","tags":{"inventory_name":"american-red-cross-divisions","categories":["Emergency Services","Public Health","Geonames"]},"created_at":"2026-02-15T06:41:40.102680","updated_at":"2026-02-15T06:41:40.102700","id":3043,"description":"This dataset represents Red Cross division, which are a corporate structure with a Division Vice President (DVP), Division Disaster Executive (DDE) and Division Disaster Directors (DDD). Red Cross Geography Model: Counties make up chapters, chapters make up regions and regions make up divisions. There are five exceptions to the Red Cross Geography model: Middlesex County, MA, Los Angeles, Kern, Riverside and San Bernardino Counties in California which are covered by more than one Chapter. (Many to One). In the case of these five counties, the geometry was dissolved from Zip Codes.","collection_id":1,"links":{"self":"https://hifld.publicenvirodata.org/api/collections/hifld/datasets/american-red-cross-divisions"}},{"name":"American Red Cross Headquarters","slug":"american-red-cross-headquarters-1","tags":{"inventory_name":"american-red-cross-headquarters-1","categories":["Emergency Services","Public Venues"]},"created_at":"2026-02-15T06:41:34.070536","updated_at":"2026-02-15T06:41:34.070558","id":3041,"description":"This dataset represents American Red Cross chapter and region headquarters locations. This point file represents only the headquarters location for each chapter and does not reflect any branch offices or warehouse facilities. Due to the recent changes to the chapter network a few of the addresses are subject to change.","collection_id":1,"links":{"self":"https://hifld.publicenvirodata.org/api/collections/hifld/datasets/american-red-cross-headquarters-1"}},{"name":"American Red Cross Regions","slug":"american-red-cross-regions","tags":{"inventory_name":"american-red-cross-regions","categories":["Emergency Services","Geonames"]},"created_at":"2026-02-15T06:41:27.941031","updated_at":"2026-02-15T06:41:27.941054","id":3039,"description":"Generalized geospatial data pertaining to American Red Cross Chapter Regions","collection_id":1,"links":{"self":"https://hifld.publicenvirodata.org/api/collections/hifld/datasets/american-red-cross-regions"}},{"name":"Amtrak Stations","slug":"amtrak-stations","tags":{"inventory_name":"amtrak-stations","categories":["Transportation Ground"]},"created_at":"2026-02-15T06:41:21.884655","updated_at":"2026-02-15T06:41:21.884678","id":3037,"description":"The Amtrak Stations dataset is as of September 23, 2024 from Amtrak and is part of the U.S. Department of Transportation (USDOT)/Bureau of Transportation Statistics (BTS) National Transportation Atlas Database (NTAD). This dataset contains Amtrak intercity railroad passenger terminals in the United States.","collection_id":1,"links":{"self":"https://hifld.publicenvirodata.org/api/collections/hifld/datasets/amtrak-stations"}},{"name":"Antenna Structure Registration (ASR)","slug":"antenna-structure-registration-asr","tags":{"inventory_name":"antenna-structure-registration-asr","categories":["Communications"]},"created_at":"2026-02-15T06:41:30.958863","updated_at":"2026-02-15T06:41:30.958887","id":3040,"description":"The FCC Rules define the term \"antenna structure\" to include \"[T]he radiating and/or receive system, its supporting structures and any appurtenances mounted thereon.\" In practical terms, an antenna structure could be a free standing structure, built specifically to support antennas or act as an antenna, or it could be a structure mounted on some other man-made object (such as a building or bridge). If the structure is mounted on some other man-made object such as a building or bridge, the structure must be registered with the FCC, not the building or bridge.Objects such as buildings, observation towers, bridges, windmills, and water towers that do not have an antenna mounted on them are not antenna structures and should not be registered. Keep in mind that the FCC only has jurisdiction over antenna structures, and thus, other objects that do not house antennas are not required to be registered with the FCC -- regardless of their location or height.Antenna Structure Registration (ASR) - OverviewDocumentation and Data Dictionary provided by FCC:Intro to ASR database filesASR Table Data ElementsASR Data Field Definitions","collection_id":1,"links":{"self":"https://hifld.publicenvirodata.org/api/collections/hifld/datasets/antenna-structure-registration-asr"}},{"name":"Aquifers","slug":"aquifers","tags":{"inventory_name":"aquifers","categories":["Water Supply","Natural Hazards"]},"created_at":"2026-02-15T06:41:46.179408","updated_at":"2026-02-15T06:41:46.179430","id":3045,"description":"This map layer contains the shallowest principal aquifers of the conterminous United States, Hawaii, Puerto Rico, and the U.S. Virgin Islands, portrayed as polygons. The map layer was developed as part of the effort to produce the maps published at 1:2,500,000 in the printed series \"Ground Water Atlas of the United States\". The published maps contain base and cultural features not included in these data. This is a replacement for the July 1998 map layer called Principal Aquifers of the 48 Conterminous United States - https://doi.org/10.3133/70046037","collection_id":1,"links":{"self":"https://hifld.publicenvirodata.org/api/collections/hifld/datasets/aquifers"}},{"name":"Aviation Facilities","slug":"aviation-facilities","tags":{"inventory_name":"aviation-facilities","categories":["Transportation Air","Government"]},"created_at":"2026-02-15T06:41:43.164271","updated_at":"2026-02-15T06:41:43.164293","id":3044,"description":"The Aviation Facilities dataset is updated every 28 days from the Federal Aviation Administration (FAA) and is part of the U.S. Department of Transportation (USDOT)/Bureau of Transportation Statistics (BTS) National Transportation Atlas Database (NTAD). The Aviation Facilities dataset is a geographic point database of all official and operational aerodromes in the United States and U.S. Territories. Attribute data is provided on the physical and operational characteristics of the aerodrome, current usage including enplanements and aircraft operations, congestion levels and usage categories. This geospatial data is derived from the FAA's National Airspace System Resource Aeronautical Data Product. For more information about these data, please visit: https://www.faa.gov/air_traffic/flight_info/aeronav/Aero_Data/NASR_Subscription.","collection_id":1,"links":{"self":"https://hifld.publicenvirodata.org/api/collections/hifld/datasets/aviation-facilities"}},{"name":"Bathymetric Contours","slug":"bathymetric-contours","tags":{"inventory_name":"bathymetric-contours","categories":["Natural Hazards","Transportation Water"]},"created_at":"2026-02-15T07:10:06.307910","updated_at":"2026-02-15T07:10:06.307930","id":3435,"description":"These data show bathymetric contours (isobaths) that help characterize the general physiographic patterns of the seafloor. Contour intervals are every 10 m from zero to -100 m, every 25 m from -100 m to -500 m, and every 100 m from -500 m to full depth. The DEM utilized was the Global Multi-Resolution Topography Synthesis which is a multi-resolution gridded global Digital Elevation Model that includes cleaned processed ship-based multibeam sonar data at their full spatial resolution (approximately 100m in the deep sea)","collection_id":1,"links":{"self":"https://hifld.publicenvirodata.org/api/collections/hifld/datasets/bathymetric-contours"}},{"name":"Berths Areas (USACE IENC)","slug":"berths-areas-usace-ienc","tags":{"inventory_name":"berths-areas-usace-ienc","categories":["Transportation Water","Boundaries","Commercial"]},"created_at":"2026-02-15T06:41:49.196678","updated_at":"2026-02-15T06:41:49.196701","id":3046,"description":"The USACE IENCs coverage area consists of 7,260 miles across 21 rivers primarily located in the Central United States. IENCs apply to inland waterways that are maintained for navigation by USACE for shallow-draft vessels (e.g., maintained at a depth of 9-14 feet, dependent upon the waterway project authorization). Generally, IENCs are produced for those commercially navigable waterways which the National Oceanic and Atmospheric Administration (NOAA) does not produce Electronic Navigational Charts (ENCs). However, Special Purpose IENCs may be produced in agreement with NOAA. IENC POC: IENC_POC@usace.army.mil","collection_id":1,"links":{"self":"https://hifld.publicenvirodata.org/api/collections/hifld/datasets/berths-areas-usace-ienc"}},{"name":"Biodiesel Plants","slug":"biodiesel-plants-1","tags":{"inventory_name":"biodiesel-plants-1","categories":["Energy","Public Health","Agriculture"]},"created_at":"2026-02-15T06:42:04.416297","updated_at":"2026-02-15T06:42:04.416319","id":3051,"description":"These data identify and provide detailed information on biodiesel plants in the United States as of January 1, 2023. The attribute data for this point dataset come from EIA's U.S. Biodiesel Plant Production Capacity report, which is sourced from U.S. Energy Information Administration, Form EIA-819, Monthly Report of Biofuels, Fuels from Non-Biogenic Wastes, Fuel Oxygenates, Isooctane, and Isooctene. Biodiesel production capacity is intended to measure estimated gallons of biodiesel that a plant is capable of producing over a period of one year (365 consecutive days) starting on the first day of each report month. Production capacity in million gallons per year (MMgal/year). The facility location data represent the approximate location based on research of publicly available information from sources such as Federal agencies, company websites, and satellite images on public websites.","collection_id":1,"links":{"self":"https://hifld.publicenvirodata.org/api/collections/hifld/datasets/biodiesel-plants-1"}},{"name":"Border Crossings - Natural Gas","slug":"border-crossings-natural-gas","tags":{"inventory_name":"border-crossings-natural-gas","categories":["Borders","Energy"],"geometry_type":"LineString"},"created_at":"2026-02-15T06:41:58.293309","updated_at":"2026-02-15T06:41:58.293330","id":3049,"description":"U.S. border crossings of natural gas pipelines as of 2017. A crossing point represents one or more pipelines.Source: U.S. Department of Energy, Federal Energy Regulatory Commission, public websites and press releases.","collection_id":1,"links":{"self":"https://hifld.publicenvirodata.org/api/collections/hifld/datasets/border-crossings-natural-gas"}},{"name":"Bridge Areas (USACE IENC)","slug":"bridge-areas-usace-ienc","tags":{"inventory_name":"bridge-areas-usace-ienc","categories":["Transportation Water","Boundaries"]},"created_at":"2026-02-15T07:07:26.270688","updated_at":"2026-02-15T07:07:26.270730","id":3413,"description":"The USACE IENCs coverage area consists of 7,260 miles across 21 rivers primarily located in the Central United States. IENCs apply to inland waterways that are maintained for navigation by USACE for shallow-draft vessels (e.g., maintained at a depth of 9-14 feet, dependent upon the waterway project authorization). Generally, IENCs are produced for those commercially navigable waterways which the National Oceanic and Atmospheric Administration (NOAA) does not produce Electronic Navigational Charts (ENCs). However, Special Purpose IENCs may be produced in agreement with NOAA. IENC POC: IENC_POC@usace.army.mil","collection_id":1,"links":{"self":"https://hifld.publicenvirodata.org/api/collections/hifld/datasets/bridge-areas-usace-ienc"}},{"name":"Broadband Radio Service (BRS) and Educational Broadband Service (EBS) Transmitters","slug":"broadband-radio-service-transmitters","tags":{"inventory_name":"broadband-radio-service-transmitters","categories":["Communications","Education","Commercial"]},"created_at":"2026-02-15T06:42:34.087444","updated_at":"2026-02-15T06:42:34.087464","id":3061,"description":"The Broadband Radio Service (BRS), formerly known as the Multipoint Distribution Service (MDS)/Multichannel Multipoint Distribution Service (MMDS), is a commercial service. In the past, it was generally used for the transmission of data and video programming to subscribers using high-powered systems, also known as wireless cable. However, over the years, the uses have evolved to include digital two-way systems capable of providing high-speed, high-capacity broadband service, including two-way Internet service via cellularized communication systems. Such services provide consumers integrated access to voice, high-speed data, video-on-demand, and interactive delivery services from a wireless device. The Educational Broadband Service (EBS), formerly known as the Instructional Television Fixed Service (ITFS), is an educational service that has generally been used for the transmission of instructional material to accredited educational institutions and non-educational institutions such as hospitals, nursing homes, training centers, and rehabilitation centers using high-powered systems. Our recent revamping of the EBS spectrum will now make it possible for EBS users to continue their instructional services utilizing low-power broadband systems while also providing students with high-speed internet access.The 2.5 GHz band, which is divided into the Broadband Radio Service (BRS) and the Educational Broadband Service (EBS), is available for commercial service. The band is currently used to provide high-speed, high-capacity broadband service, including two-way Internet service via cellularized communication systems. Such services provide consumers integrated access to voice, high-speed data, video-on-demand, and interactive delivery services from a wireless device. Broadband Radio Service & Education Broadband Service","collection_id":1,"links":{"self":"https://hifld.publicenvirodata.org/api/collections/hifld/datasets/broadband-radio-service-transmitters"}},{"name":"Building Locations (USACE IENC)","slug":"building-locations-usace-ienc","tags":{"inventory_name":"building-locations-usace-ienc","categories":["Transportation Water","Commercial"]},"created_at":"2026-02-15T06:42:01.288258","updated_at":"2026-02-15T06:42:01.288281","id":3050,"description":"The USACE IENCs coverage area consists of 7,260 miles across 21 rivers primarily located in the Central United States. IENCs apply to inland waterways that are maintained for navigation by USACE for shallow-draft vessels (e.g., maintained at a depth of 9-14 feet, dependent upon the waterway project authorization). Generally, IENCs are produced for those commercially navigable waterways which the National Oceanic and Atmospheric Administration (NOAA) does not produce Electronic Navigational Charts (ENCs). However, Special Purpose IENCs may be produced in agreement with NOAA. IENC POC: IENC_POC@usace.army.mil","collection_id":1,"links":{"self":"https://hifld.publicenvirodata.org/api/collections/hifld/datasets/building-locations-usace-ienc"}},{"name":"Built Up Areas Point (USACE IENC)","slug":"built-up-areas-point-usace-ienc","tags":{"inventory_name":"built-up-areas-point-usace-ienc","categories":["Transportation Water","Commercial","Boundaries"]},"created_at":"2026-02-15T07:11:51.734930","updated_at":"2026-02-15T07:11:51.734955","id":3438,"description":"The USACE IENCs coverage area consists of 7,260 miles across 21 rivers primarily located in the Central United States. IENCs apply to inland waterways that are maintained for navigation by USACE for shallow-draft vessels (e.g., maintained at a depth of 9-14 feet, dependent upon the waterway project authorization). Generally, IENCs are produced for those commercially navigable waterways which the National Oceanic and Atmospheric Administration (NOAA) does not produce Electronic Navigational Charts (ENCs). However, Special Purpose IENCs may be produced in agreement with NOAA. Built-up area Definition: An area containing a concentration of buildings and the supporting road or rail infrastructure. Distinction: building, single; road; square","collection_id":1,"links":{"self":"https://hifld.publicenvirodata.org/api/collections/hifld/datasets/built-up-areas-point-usace-ienc"}},{"name":"CBRS Buffer Zone","slug":"cbrs-buffer-zone-1","tags":{"inventory_name":"cbrs-buffer-zone-1","categories":["Boundaries","Natural Hazards"]},"created_at":"2026-02-15T06:42:10.442176","updated_at":"2026-02-15T06:42:10.442198","id":3053,"description":"This Coastal Barrier Resources System (CBRS) data set, produced by the U.S. Fish and Wildlife Service (Service), contains areas designated as undeveloped coastal barriers in accordance with the Coastal Barrier Resources Act (CBRA), 16 U.S.C. 3501 et seq., as amended. The boundaries used to create the polygons herein were compiled from the official John H. Chafee Coastal Barrier Resources System CBRS maps, which are accessible at the Service’s Headquarters office or https://www.fws.gov/program/coastal-barrier-resources-act/maps-and-data. These digital polygons are only representations of the CBRS boundaries shown on the official CBRS maps and are not to be considered authoritative. The Service is not responsible for any misuse or misinterpretation of this digital data set, including use of the data to determine eligibility for federal financial assistance such as federal flood insurance. As maps are revised, this data set will be updated with the new boundaries. CBRS boundaries viewed using the CBRS Mapper or the shapefile are subject to misrepresentations beyond the Service’s control, including misalignments of the boundaries with third party base layers and mis-projections of spatial data. The official CBRS map is the controlling document and should be consulted for all official determinations. Official determinations are recommended for all properties that are in close proximity (within 20 feet) of a CBRS boundary. For an official determination of whether or not an area or specific property is located within the CBRS, please follow the procedures found at https://www.fws.gov/service/coastal-barrier-resources-system-property-documentation. For any questions regarding the CBRS, please contact your local Service field office or email CBRA@fws.gov. Contact information for Service field offices can be found at https://www.fws.gov/our-facilities.Data Set Contact: U.S. Fish and Wildlife Service Natural Resource Program Center, GIS Team Lead, richard_easterbrook@fws.gov","collection_id":1,"links":{"self":"https://hifld.publicenvirodata.org/api/collections/hifld/datasets/cbrs-buffer-zone-1"}},{"name":"CBRS Map Panels","slug":"cbrs-map-panels-1","tags":{"inventory_name":"cbrs-map-panels-1","categories":["Boundaries","Natural Hazards"]},"created_at":"2026-02-15T06:42:07.442614","updated_at":"2026-02-15T06:42:07.442635","id":3052,"description":"This Coastal Barrier Resources System (CBRS) data set, produced by the U.S. Fish and Wildlife Service (Service), contains areas designated as undeveloped coastal barriers in accordance with the Coastal Barrier Resources Act (CBRA), 16 U.S.C. 3501 et seq., as amended. The boundaries used to create the polygons herein were compiled from the official John H. Chafee Coastal Barrier Resources System CBRS maps, which are accessible at the Service’s Headquarters office or https://www.fws.gov/program/coastal-barrier-resources-act/maps-and-data. These digital polygons are only representations of the CBRS boundaries shown on the official CBRS maps and are not to be considered authoritative. The Service is not responsible for any misuse or misinterpretation of this digital data set, including use of the data to determine eligibility for federal financial assistance such as federal flood insurance. As maps are revised, this data set will be updated with the new boundaries. CBRS boundaries viewed using the CBRS Mapper or the shapefile are subject to misrepresentations beyond the Service’s control, including misalignments of the boundaries with third party base layers and mis-projections of spatial data. The official CBRS map is the controlling document and should be consulted for all official determinations. Official determinations are recommended for all properties that are in close proximity (within 20 feet) of a CBRS boundary. For an official determination of whether or not an area or specific property is located within the CBRS, please follow the procedures found at https://www.fws.gov/service/coastal-barrier-resources-system-property-documentation. For any questions regarding the CBRS, please contact your local Service field office or email CBRA@fws.gov. Contact information for Service field offices can be found at https://www.fws.gov/our-facilities.Data Set Contact: U.S. Fish and Wildlife Service Natural Resource Program Center, GIS Team Lead, richard_easterbrook@fws.gov","collection_id":1,"links":{"self":"https://hifld.publicenvirodata.org/api/collections/hifld/datasets/cbrs-map-panels-1"}},{"name":"CBRS Prohibitions","slug":"cbrs-prohibitions-1","tags":{"inventory_name":"cbrs-prohibitions-1","categories":["Boundaries","Natural Hazards"]},"created_at":"2026-02-15T06:42:13.433916","updated_at":"2026-02-15T06:42:13.433940","id":3054,"description":"This Coastal Barrier Resources System (CBRS) data set, produced by the U.S. Fish and Wildlife Service (Service), contains areas designated as undeveloped coastal barriers in accordance with the Coastal Barrier Resources Act (CBRA), 16 U.S.C. 3501 et seq., as amended. The boundaries used to create the polygons herein were compiled from the official John H. Chafee Coastal Barrier Resources System CBRS maps, which are accessible at the Service’s Headquarters office or https://www.fws.gov/program/coastal-barrier-resources-act/maps-and-data. These digital polygons are only representations of the CBRS boundaries shown on the official CBRS maps and are not to be considered authoritative. The Service is not responsible for any misuse or misinterpretation of this digital data set, including use of the data to determine eligibility for federal financial assistance such as federal flood insurance. As maps are revised, this data set will be updated with the new boundaries. CBRS boundaries viewed using the CBRS Mapper or the shapefile are subject to misrepresentations beyond the Service’s control, including misalignments of the boundaries with third party base layers and mis-projections of spatial data. The official CBRS map is the controlling document and should be consulted for all official determinations. Official determinations are recommended for all properties that are in close proximity (within 20 feet) of a CBRS boundary. For an official determination of whether or not an area or specific property is located within the CBRS, please follow the procedures found at https://www.fws.gov/service/coastal-barrier-resources-system-property-documentation. For any questions regarding the CBRS, please contact your local Service field office or email CBRA@fws.gov. Contact information for Service field offices can be found at https://www.fws.gov/our-facilities.Data Set Contact: U.S. Fish and Wildlife Service Natural Resource Program Center, GIS Team Lead, richard_easterbrook@fws.gov","collection_id":1,"links":{"self":"https://hifld.publicenvirodata.org/api/collections/hifld/datasets/cbrs-prohibitions-1"}},{"name":"CBRS Units","slug":"cbrs-units-2","tags":{"inventory_name":"cbrs-units-2","categories":["Boundaries","Natural Hazards"]},"created_at":"2026-02-15T06:42:28.038587","updated_at":"2026-02-15T06:42:28.038635","id":3059,"description":"This Coastal Barrier Resources System (CBRS) data set, produced by the U.S. Fish and Wildlife Service (Service), contains areas designated as undeveloped coastal barriers in accordance with the Coastal Barrier Resources Act (CBRA), 16 U.S.C. 3501 et seq., as amended. The boundaries used to create the polygons herein were compiled from the official John H. Chafee Coastal Barrier Resources System CBRS maps, which are accessible at the Service’s Headquarters office or https://www.fws.gov/program/coastal-barrier-resources-act/maps-and-data. These digital polygons are only representations of the CBRS boundaries shown on the official CBRS maps and are not to be considered authoritative. The Service is not responsible for any misuse or misinterpretation of this digital data set, including use of the data to determine eligibility for federal financial assistance such as federal flood insurance. As maps are revised, this data set will be updated with the new boundaries. CBRS boundaries viewed using the CBRS Mapper or the shapefile are subject to misrepresentations beyond the Service’s control, including misalignments of the boundaries with third party base layers and mis-projections of spatial data. The official CBRS map is the controlling document and should be consulted for all official determinations. Official determinations are recommended for all properties that are in close proximity (within 20 feet) of a CBRS boundary. For an official determination of whether or not an area or specific property is located within the CBRS, please follow the procedures found at https://www.fws.gov/service/coastal-barrier-resources-system-property-documentation. For any questions regarding the CBRS, please contact your local Service field office or email CBRA@fws.gov. Contact information for Service field offices can be found at https://www.fws.gov/our-facilities.Data Set Contact: U.S. Fish and Wildlife Service Natural Resource Program Center, GIS Team Lead, richard_easterbrook@fws.gov","collection_id":1,"links":{"self":"https://hifld.publicenvirodata.org/api/collections/hifld/datasets/cbrs-units-2"}},{"name":"Cable Areas (USACE IENC)","slug":"cable-areas-usace-ienc","tags":{"inventory_name":"cable-areas-usace-ienc","categories":["Transportation Water","Boundaries","Commercial"]},"created_at":"2026-02-15T07:07:44.897945","updated_at":"2026-02-15T07:07:44.897967","id":3415,"description":"The USACE IENCs coverage area consists of 7,260 miles across 21 rivers primarily located in the Central United States. IENCs apply to inland waterways that are maintained for navigation by USACE for shallow-draft vessels (e.g., maintained at a depth of 9-14 feet, dependent upon the waterway project authorization). Generally, IENCs are produced for those commercially navigable waterways which the National Oceanic and Atmospheric Administration (NOAA) does not produce Electronic Navigational Charts (ENCs). However, Special Purpose IENCs may be produced in agreement with NOAA. IENC POC: IENC_POC@usace.army.mil","collection_id":1,"links":{"self":"https://hifld.publicenvirodata.org/api/collections/hifld/datasets/cable-areas-usace-ienc"}},{"name":"Canada and US Border","slug":"canada-and-us-border","tags":{"inventory_name":"canada-and-us-border","categories":["Borders","Boundaries"]},"created_at":"2026-02-15T06:41:55.258419","updated_at":"2026-02-15T06:41:55.258442","id":3048,"description":"The shapefile is composed of 30 segments that correspond to the original 256 boundary maps. Attributes of each segment define the scale in which the line in that area may be accurately depicted. It is produced for mapping purposes only and not intended to illustrate the boundary beyond the limits of the scale for any given segment.","collection_id":1,"links":{"self":"https://hifld.publicenvirodata.org/api/collections/hifld/datasets/canada-and-us-border"}},{"name":"Caution Area Locations (USACE IENC)","slug":"caution-area-locations-usace-ienc","tags":{"inventory_name":"caution-area-locations-usace-ienc","categories":["Boundaries","Transportation Water"]},"created_at":"2026-02-15T06:41:52.267908","updated_at":"2026-02-15T06:41:52.267928","id":3047,"description":"The USACE IENCs coverage area consists of 7,260 miles across 21 rivers primarily located in the Central United States. IENCs apply to inland waterways that are maintained for navigation by USACE for shallow-draft vessels (e.g., maintained at a depth of 9-14 feet, dependent upon the waterway project authorization). Generally, IENCs are produced for those commercially navigable waterways which the National Oceanic and Atmospheric Administration (NOAA) does not produce Electronic Navigational Charts (ENCs). However, Special Purpose IENCs may be produced in agreement with NOAA. Users should be aware that the IENCs reflect best available information at the time the data was collected. These data products are subject to change.POC email: IENC_POC@usace.army.mil","collection_id":1,"links":{"self":"https://hifld.publicenvirodata.org/api/collections/hifld/datasets/caution-area-locations-usace-ienc"}},{"name":"Cellular Towers","slug":"cellular-towers","tags":{"inventory_name":"cellular-towers","categories":["Communications","Emergency Services"]},"created_at":"2026-02-15T06:42:22.462127","updated_at":"2026-02-15T06:42:22.462149","id":3057,"description":"This dataset serves as base information for use in GIS systems for general planning, analytical, and research purposes. It is not intended for engineering work or to legally define FCC licensee data or FCC market boundaries. The material in these data and text files are provided as-is. The FCC disclaims all warranties with regard to the contents of these files, including their fitness. In no event shall the FCC be liable for any special, indirect, or consequential damages whatsoever resulting from loss or use, data, or profits, whether in connection with the use or performance of the contents of these files, action of contract, negligence, or other action arising out of, or in connection with the use of the contents of these files. It is known that there are some errors in the licensing information - Latitude, Longitude and Ground Elevation data as well as frequency assignment data from which these files were generated. Data source: Federal Communications Commission Data and details are hosted by HIFLD as received from the data provider.","collection_id":1,"links":{"self":"https://hifld.publicenvirodata.org/api/collections/hifld/datasets/cellular-towers"}},{"name":"Census Block Groups","slug":"census-block-groups-3","tags":{"inventory_name":"census-block-groups-3","categories":["Geonames","Government"]},"created_at":"2026-02-15T06:42:16.436628","updated_at":"2026-02-15T06:42:16.436648","id":3055,"description":"Block Groups (BGs) are statistical divisions of census tracts, are generally defined to contain between 600 and 3,000 people, and are used to present sample data and control block numbering. A block group consists of clusters of blocks within the same census tract that have the same first digit of their four-digit census block number. For example, blocks 3001, 3002, 3003 . . . 3999 in census tract 1210.02 belong to BG 3 in that census tract. Block groups generally contain between 600 and 3,000 people. Most BGs were delineated by local participants in the Census Bureau's Participant Statistical Areas Program. The Census Bureau delineated BGs only where a local or tribal government declined to participate and a regional organization or State Data Center was not available to participate.A BG usually covers a contiguous area. Each census tract contains at least one BG and BGs are uniquely numbered within census tract. Within the standard census geographic hierarchy, BGs never cross county or census tract boundaries but may cross the boundaries of areas any other geographic entity. Tribal census tracts and tribal BGs are separate and unique geographic areas defined within federally recognized American Indian reservations and can cross state and county boundaries. The tribal census tracts and tribal block groups may be completely different from the census tracts and block groups defined by state and county.Download: https://www2.census.gov/geo/tiger/TGRGDB24/tlgdb_2024_a_us_substategeo.gdb.zip Layer: Block_GroupMetadata: https://meta.geo.census.gov/data/existing/decennial/GEO/GPMB/TIGERline/Current_19115/series_tl_2023_bg.shp.iso.xml","collection_id":1,"links":{"self":"https://hifld.publicenvirodata.org/api/collections/hifld/datasets/census-block-groups-3"}},{"name":"Census Designated Places","slug":"census-designated-places","tags":{"inventory_name":"census-designated-places","categories":["Boundaries","Geonames","Government"]},"created_at":"2026-02-15T06:42:31.063307","updated_at":"2026-02-15T06:42:31.063328","id":3060,"description":"Census Designated Places (CDPs) are the statistical counterparts of incorporated places and are delineated to provide data for settled concentrations of population that are identifiable by name but are not legally incorporated under the laws of the state in which they are located. The boundaries usually are defined in cooperation with local or tribal officials and generally updated prior to each decennial census. These boundaries, which usually coincide with visible features or the boundary of an adjacent incorporated place or another legal entity boundary, have no legal status, nor do these places have officials elected to serve traditional municipal functions. CDP boundaries may change from one decennial census to the next with changes in the settlement pattern; a CDP with the same name as in an earlier census does not necessarily have the same boundary. CDPs must be contained within a single state and may not extend into an incorporated place. There are no population size requirements for CDPs.Hawaii is the only state that has no incorporated places recognized by the Census Bureau. All places shown in decennial census data products for Hawaii are CDPs. By agreement with the State of Hawaii, the Census Bureau does not show data separately for the city of Honolulu, which is coextensive with Honolulu County. In Puerto Rico, which also does not have incorporated places, the Census Bureau recognizes only CDPs and refers to them as comunidades or zonas urbanas. Guam also has only CDPs.Download: https://www2.census.gov/geo/tiger/TGRGDB24/tlgdb_2024_a_us_substategeo.gdb.zip Layer: Census_Designated_PlaceMetadata: https://meta.geo.census.gov/data/existing/decennial/GEO/GPMB/TIGERline/Current_19115/series_tl_2023_place.shp.iso.xml","collection_id":1,"links":{"self":"https://hifld.publicenvirodata.org/api/collections/hifld/datasets/census-designated-places"}},{"name":"Census Tracts","slug":"census-tracts-2","tags":{"inventory_name":"census-tracts-2","categories":["Boundaries","Geonames","Government"]},"created_at":"2026-02-15T06:42:19.455971","updated_at":"2026-02-15T06:42:19.455994","id":3056,"description":"Census Tracts are small, relatively permanent statistical subdivisions of a county or equivalent entity that are updated by local participants prior to each decennial census as part of the Census Bureau's Participant Statistical Areas Program. The Census Bureau delineates census tracts in situations where no local participant existed or where state, local, or tribal governments declined to participate. The primary purpose of census tracts is to provide a stable set of geographic units for the presentation of statistical data.Census tracts generally have a population size between 1,200 and 8,000 people with an optimum size of 4,000 people. A census tract usually covers a contiguous area; however the spatial size of census tracts varies widely depending on the density of settlement. Census tract boundaries are delineated with the intention of being maintained over a long time so that statistical comparisons can be made from census to census. Census tracts occasionally are split due to population growth or merged as a result of substantial population decline.Census tract boundaries generally follow visible and identifiable features. They may follow non-visible legal boundaries, such as minor civil division (MCD) or incorporated place boundaries in some states and situations, to allow for census tract-to-governmental unit relationships where the governmental boundaries tend to remain unchanged between censuses. State and county boundaries always are census tract boundaries in the standard census geographic hierarchy. Tribal census tracts are a unique geographic entity defined within federally recognized American Indian reservations and can cross state and county boundaries. Tribal census tracts may be completely different from the census tracts and block groups defined by state and county.Download: https://www2.census.gov/geo/tiger/TGRGDB24/tlgdb_2024_a_us_substategeo.gdb.zip Layer: Census_TractMetadata: https://meta.geo.census.gov/data/existing/decennial/GEO/GPMB/TIGERline/Current_19115/series_tl_2023_place.shp.iso.xml","collection_id":1,"links":{"self":"https://hifld.publicenvirodata.org/api/collections/hifld/datasets/census-tracts-2"}},{"name":"Child Care Centers","slug":"child-care-centers","tags":{"inventory_name":"child-care-centers","categories":["Education","Public Venues"]},"created_at":"2026-02-15T06:42:25.375413","updated_at":"2026-02-15T06:42:25.375437","id":3058,"description":"This feature class/shapefile contains locations of child day care centers for the 50 states of the USA, Washington D.C., and Puerto Rico. The dataset only includes center based child day care locations (including those located at schools and religious institutes) and does not include group, home, and family based child day cares. The SOURCEDATE is an indicator of when the source data was last acquired or was publicly available. All the data was acquired from respective states departments or their open source websites and only contains data provided by these sources. Information on the source of data for each state is available in the SOURCE field of the feature class/shapefile. The TYPE attribute is a common categorization of child day care centers for all states which categorizes every child day care into Center Based, School Based, Head Start, or Religious Facility solely based on the type of facility where the child day care center is geographically located. This update has 2608 fewer records than the previous version based on source data","collection_id":1,"links":{"self":"https://hifld.publicenvirodata.org/api/collections/hifld/datasets/child-care-centers"}},{"name":"Coastlines (USACE IENC)","slug":"coastlines-usace-ienc","tags":{"inventory_name":"coastlines-usace-ienc","categories":["Transportation Water","Commercial","Boundaries"]},"created_at":"2026-02-15T06:42:37.124578","updated_at":"2026-02-15T06:42:37.124611","id":3062,"description":"The USACE IENCs coverage area consists of 7,260 miles across 21 rivers primarily located in the Central United States. IENCs apply to inland waterways that are maintained for navigation by USACE for shallow-draft vessels (e.g., maintained at a depth of 9-14 feet, dependent upon the waterway project authorization). Generally, IENCs are produced for those commercially navigable waterways which the National Oceanic and Atmospheric Administration (NOAA) does not produce Electronic Navigational Charts (ENCs). However, Special Purpose IENCs may be produced in agreement with NOAA. IENC POC: IENC_POC@usace.army.mil","collection_id":1,"links":{"self":"https://hifld.publicenvirodata.org/api/collections/hifld/datasets/coastlines-usace-ienc"}},{"name":"Colleges and Universities","slug":"colleges-and-universities","tags":{"inventory_name":"colleges-and-universities","categories":["Education","Government"]},"created_at":"2026-02-15T06:42:40.156037","updated_at":"2026-02-15T06:42:40.156073","id":3063,"description":"The Colleges and Universities feature class/shapefile is composed of all Post Secondary Education facilities as defined by the Integrated Post Secondary Education System (IPEDS, http://nces.ed.gov/ipeds/), National Center for Education Statistics (NCES, https://nces.ed.gov/), US Department of Education for the 2020-2021 school year. Included are Doctoral/Research Universities, Masters Colleges and Universities, Baccalaureate Colleges, Associates Colleges, Theological seminaries, Medical Schools and other health care professions, Schools of engineering and technology, business and management, art, music, design, Law schools, Teachers colleges, Tribal colleges, and other specialized institutions. Overall, this data layer covers all 50 states, as well as Puerto Rico and other assorted U.S. territories. This feature class contains all MEDS/MEDS+ as approved by the National Geospatial-Intelligence Agency (NGA) Homeland Security Infrastructure Program (HSIP) Team. Complete field and attribute information is available in the ”Entities and Attributes” metadata section. Geographical coverage is depicted in the thumbnail above and detailed in the \"Place Keyword\" section of the metadata. This feature class does not have a relationship class but is related to Supplemental Colleges. Colleges and Universities that are not included in the NCES IPEDS data are added to the Supplemental Colleges feature class when found. This release includes the addition of 128 new records, the removal of 247 no longer reported by NCES, and modifications to the spatial location and/or attribution of 6312 records.","collection_id":1,"links":{"self":"https://hifld.publicenvirodata.org/api/collections/hifld/datasets/colleges-and-universities"}},{"name":"Colleges and Universities Campuses","slug":"colleges-and-universities-campuses","tags":{"inventory_name":"colleges-and-universities-campuses","categories":["Education","Geonames","Government"]},"created_at":"2026-02-15T06:42:48.767424","updated_at":"2026-02-15T06:42:48.767444","id":3066,"description":"The College and University Campuses feature class/shapefile is composed of all Post Secondary Education facilities as defined by the Homeland Infrastructure Foundation-Level Data (HIFLD) Colleges and Universities and Supplemental Colleges point feature classes/shapefiles with a POPULATION value greater than or equal to 500. Also included is a subset of campuses with a POPULATION value under 500 or equal to -999. Included are Doctoral/Research Universities, Masters Colleges and Universities, Baccalaureate Colleges, Associates Colleges, Theological seminaries, Medical Schools and other health care professions, Schools of engineering and technology, business and management, art, music, design, Law schools, Teachers colleges, Tribal colleges, and other specialized institutions. Excluded are online institutions and administrative records as well as colleges and universities that do not have a verifiable campus map. Overall, this data layer covers all 50 states, as well as Puerto Rico and other assorted U.S. territories. This feature class/shapefile contains all MEDS/MEDS+ as approved by the National Geospatial-Intelligence Agency (NGA) Homeland Security Infrastructure Program (HSIP) Team. Complete field and attribute information is available in the ”Entities and Attributes” metadata section. Geographical coverage is depicted in the thumbnail above and detailed in the \"Place Keyword\" section of the metadata. This feature class does not have a relationship class but is related to Supplemental Colleges and Colleges and Universities. Note that attribution is derived from the Colleges and Universities and Supplemental Colleges feature classes/shapefiles. Refer to the metadata of those feature classes/shapefiles for further information regarding attribution. This release includes 21 new records and the removal of 88 records that are no longer applicable based on the sourced datasets.","collection_id":1,"links":{"self":"https://hifld.publicenvirodata.org/api/collections/hifld/datasets/colleges-and-universities-campuses"}},{"name":"Combined Statistical Areas","slug":"combined-statistical-areas-3","tags":{"inventory_name":"combined-statistical-areas-3","categories":["Geonames","Government"]},"created_at":"2026-02-15T06:42:46.101776","updated_at":"2026-02-15T06:42:46.101799","id":3065,"description":"Combined Statistical Areas (CSAs) consist of two or more adjacent CBSAs that have substantial employment interchange. The CBSAs that combine to create a CSA retain separate identities within the larger CSA. Because CSAs represent groupings of metropolitan and/or micropolitan statistical areas, they should not be ranked or compared with individual metropolitan and micropolitan statistical areas.Download: https://www2.census.gov/geo/tiger/TGRGDB24/tlgdb_2024_a_us_nationgeo.gdb.zip Layer: Combined_Statistical_AreaMetadata: https://meta.geo.census.gov/data/existing/decennial/GEO/GPMB/TIGERline/Current_19115/series_tl_2023_csa.shp.iso.xml","collection_id":1,"links":{"self":"https://hifld.publicenvirodata.org/api/collections/hifld/datasets/combined-statistical-areas-3"}},{"name":"Consolidated Cities","slug":"consolidated-cities","tags":{"inventory_name":"consolidated-cities","categories":["Borders","Boundaries","Government"]},"created_at":"2026-02-15T06:42:51.763880","updated_at":"2026-02-15T06:42:51.763913","id":3067,"description":"A Consolidated City is a unit of local government for which the functions of an incorporated place and its county or minor civil division (MCD) have merged. This action results in both the primary incorporated place and the county or MCD continuing to exist as legal entities, even though the county or MCD performs few or no governmental functions and has few or no elected officials. Where this occurs, and where one or more other incorporated places in the county or MCD continue to function as separate governments, even though they have been included in the consolidated government, the primary incorporated place is referred to as a consolidated city. The Census Bureau classifies the separately incorporated places within the consolidated city as place entities and creates a separate place (balance) record for the portion of the consolidated city not within any other place.Download: https://www2.census.gov/geo/tiger/TGRGDB24/tlgdb_2024_a_us_substategeo.gdb.zip Layer: Consolidated_CityMetadata: meta.geo.census.gov/data/existing/decennial/GEO/GPMB/TIGERline/Current_19115/series_tl_2023_concity.shp.iso.xml","collection_id":1,"links":{"self":"https://hifld.publicenvirodata.org/api/collections/hifld/datasets/consolidated-cities"}},{"name":"Construction Minerals Operations","slug":"construction-minerals-operations","tags":{"inventory_name":"construction-minerals-operations","categories":["Mining"]},"created_at":"2026-02-15T06:42:43.161235","updated_at":"2026-02-15T06:42:43.161258","id":3064,"description":"This map layer includes construction minerals operations in the United States. The data represent commodities covered by the Minerals Information Team (MIT) of the U.S. Geological Survey. The mineral operations are plants and (or) mines surveyed by the MIT and considered currently active in 2003. Excluded are construction sand and gravel and crushed stone. This is a replacement for the June 2004 map layer.The data is legacy and not expected to be updated. It is being provided as the best available until Mineral Resources identifies an alternative data source.","collection_id":1,"links":{"self":"https://hifld.publicenvirodata.org/api/collections/hifld/datasets/construction-minerals-operations"}},{"name":"Control Areas","slug":"control-areas","tags":{"inventory_name":"control-areas","categories":["Energy","Boundaries"]},"created_at":"2026-02-15T06:42:54.692518","updated_at":"2026-02-15T06:42:54.692602","id":3068,"description":"This feature class/shapefile represents electric power control areas. Control Areas, also known as Balancing Authority Areas, are controlled by Balancing Authorities, who are responsible for monitoring and balancing the generation, load, and transmission of electric power within their region, often comprised of the retail service territories of numerous electric power utilities. Each control area is interconnected with neighboring ones to facilitate emergency support, coordinated operations, and power purchases and sales. The following updates have been made since the previous release: 1 feature removed.","collection_id":1,"links":{"self":"https://hifld.publicenvirodata.org/api/collections/hifld/datasets/control-areas"}},{"name":"Conveyor Areas (USACE IENC)","slug":"conveyor-areas-usace-ienc","tags":{"inventory_name":"conveyor-areas-usace-ienc","categories":["Transportation Water","Commercial","Boundaries"]},"created_at":"2026-02-15T06:43:00.329138","updated_at":"2026-02-15T06:43:00.329159","id":3070,"description":"The USACE IENCs coverage area consists of 7,260 miles across 21 rivers primarily located in the Central United States. IENCs apply to inland waterways that are maintained for navigation by USACE for shallow-draft vessels (e.g., maintained at a depth of 9-14 feet, dependent upon the waterway project authorization). Generally, IENCs are produced for those commercially navigable waterways which the National Oceanic and Atmospheric Administration (NOAA) does not produce Electronic Navigational Charts (ENCs). However, Special Purpose IENCs may be produced in agreement with NOAA. IENC POC: IENC_POC@usace.army.mil","collection_id":1,"links":{"self":"https://hifld.publicenvirodata.org/api/collections/hifld/datasets/conveyor-areas-usace-ienc"}}],"total":330,"limit":50,"offset":0,"links":{"first":"https://hifld.publicenvirodata.org/api/collections/hifld?limit=50&offset=0","self":"https://hifld.publicenvirodata.org/api/collections/hifld?limit=50&offset=0","next":"https://hifld.publicenvirodata.org/api/collections/hifld?limit=50&offset=50","last":"https://hifld.publicenvirodata.org/api/collections/hifld?limit=50&offset=300"}}