This article was accepted into the corpus but its outbound wikilinks were never NER-processed — typical at the deepest BFS hop or when the run's entity cap was reached. No expansion funnel to show.
| United States Geological Survey National Map | |
|---|---|
| Name | National Map |
| Caption | USGS National Map portal |
| Agency | United States Geological Survey |
| Formed | 2001 |
| Jurisdiction | United States |
| Website | National Map |
United States Geological Survey National Map is a collaborative effort led by the United States Geological Survey to provide consistent topographic information for the United States, integrating cartographic and geospatial resources for scientific, planning, and operational uses. The program assembles nationwide datasets including elevation, hydrography, transportation, and land cover to support activities by the Federal Emergency Management Agency, National Oceanic and Atmospheric Administration, United States Forest Service, and state and local agencies. It interoperates with standards from the Federal Geographic Data Committee and contributes to initiatives such as the National Spatial Data Infrastructure and Geospatial Data Act of 2018.
The National Map aggregates foundational geospatial data—elevation, orthoimagery, hydrography, transportation, structures, land cover, and boundaries—into standardized products used by the Environmental Protection Agency, Department of the Interior, National Park Service, Bureau of Land Management, and United States Department of Agriculture. It supports mapping applications used by the United States Census Bureau, National Aeronautics and Space Administration, and United States Geological Survey research programs including the National Water-Quality Assessment and Earthquake Hazards Program. The program emphasizes open data principles aligned with the Open Data Policy to enable reuse by private firms like Esri and research institutions such as the Massachusetts Institute of Technology and University of California, Berkeley.
Initiated in 2001, the National Map evolved from earlier USGS mapping programs including the Topographic Division (USGS) and the National Atlas of the United States. Early partnerships with the United States Geological Survey Water Resources Division and the USGS Earth Resources Observation and Science Center shaped its hydrography and imagery missions. Through the 2000s the program integrated datasets from the National Elevation Dataset and the Geographic Names Information System, and in the 2010s adopted web services propagated by the Open Geospatial Consortium and the Federal Geographic Data Committee. Legislative and policy milestones such as the Geospatial Data Act of 2018 and coordination with the National Geospatial-Intelligence Agency further formalized roles for stewardship and distribution.
Core data layers include the National Hydrography Dataset (NHD), the National Elevation Dataset derivatives including Digital Elevation Model, orthoimagery collections, transportation networks drawn from TIGER (Topologically Integrated Geographic Encoding and Referencing), structures and address points, and land cover classifications used by the National Land Cover Database. The National Map produces seamless services: tiled elevation products, 1:24,000-scale topographic maps, quadrangle maps historically tied to the United States Geological Survey quadrangle system, and the US Topo series. Specialized products support the National Weather Service and United States Army Corps of Engineers through high-resolution bathymetry, floodplain mapping, and watershed delineations aligned with the Hydrologic Unit Code framework.
The program leverages cloud platforms and geospatial web services compliant with Open Geospatial Consortium standards, integrating Esri ArcGIS Server deployments and GeoServer instances for map services and feature services used by the National Oceanographic Data Center and academic partners. Data pipelines ingest airborne lidar from vendors and federal programs, satellite imagery from Landsat and Sentinel-2, and in situ data from the National Streamflow Information Program. Metadata conforms to Content Standard for Digital Geospatial Metadata specifications and the program participates in catalogue services used by the Geospatial One-Stop initiative. Scalability and replication are addressed through cloud providers and mirrored repositories used by state geospatial offices such as the California Department of Water Resources and the Texas Natural Resources Information System.
Users access The National Map via a web portal, RESTful APIs, Web Map Services, and downloadable bundles, supporting consumers from the Federal Emergency Management Agency and the United Parcel Service to university labs at Stanford University and the University of Michigan. Licensing is generally permissive to align with the Open Data Policy and the program provides geospatial web services compatible with clients like QGIS and ArcGIS Pro. Bulk access supports research projects funded by agencies including the National Science Foundation and collaborative datasets are distributed through clearinghouses such as the Geospatial Platform and state clearinghouses managed by the National States Geographic Information Council.
The National Map underpins hazard assessment and emergency response for events like Hurricane Katrina and the Northridge earthquake, supports natural resource management by the Bureau of Land Management and National Park Service, and enables transportation planning for the Federal Highway Administration and metropolitan planning organizations such as the Metropolitan Transportation Commission (San Francisco Bay Area). It is used in environmental compliance for the Environmental Protection Agency and in infrastructure projects by the United States Army Corps of Engineers and municipal utilities. Academic research at institutions including Columbia University and University of Colorado Boulder uses National Map data for hydrologic modelling, habitat mapping, and climate impact assessments.
Governance is coordinated through the United States Geological Survey in collaboration with the Federal Geographic Data Committee, state geospatial offices, tribal partners, and federal agencies including the National Oceanic and Atmospheric Administration and the Department of the Interior. Public–private partnerships involve firms like ESRI and data contributors include the National Agriculture Imagery Program and the U.S. Census Bureau. The National Map participates in interagency efforts such as the Geospatial Platform and adheres to policy guidance from the Office of Management and Budget and the National Science and Technology Council to align priorities for data stewardship, funding, and technical standards.
Category:United States Geological Survey Category:Geographic data sets