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| U.S. Topo | |
|---|---|
| Name | U.S. Topo |
| Type | Topographic map series |
| Creator | United States Geological Survey |
| Introduced | 2009 |
| Country | United States |
| Scale | 1:24,000 (standard) |
| Format | Raster PDF, GeoPDF, GeoTIFF, web services |
U.S. Topo is a digital topographic map series produced by the United States Geological Survey for the United States of America. It replaced traditional paper quadrangles and provides downloadable map products integrating data from federal agencies such as the National Oceanic and Atmospheric Administration, the Federal Emergency Management Agency, and the U.S. Census Bureau. The series supports mapping, planning, and field navigation for users ranging from the National Park Service to local county planners.
The program began in 2009 under initiatives from the United States Department of the Interior and the United States Geological Survey leadership to modernize the legacy USGS Topographic Maps and respond to demands from stakeholders including the National Aeronautics and Space Administration, the Department of Defense, the Federal Geographic Data Committee, and the Office of Management and Budget. Early pilot efforts referenced datasets from the National Geospatial-Intelligence Agency, standards from the Open Geospatial Consortium, and coordinate systems like the North American Datum of 1983 and NAD83(HARN). Implementation involved collaboration with state agencies such as the California Department of Water Resources, the Texas Natural Resources Information System, and metropolitan partners like the Metropolitan Transportation Authority (New York). Over time, the initiative intersected with projects such as the National Map and programs by the Library of Congress and the Smithsonian Institution for archival cartography.
The standard product is a 1:24,000-scale quadrangle mirroring the historical 7.5-minute series used by the U.S. Forest Service and the Bureau of Land Management. Specialized products incorporate broader extents at 1:100,000 and 1:250,000 scales comparable to legacy USGS 30x60 minute sheets and USGS 1:100,000-scale maps used by the National Park Service and the U.S. Fish and Wildlife Service. Other derivative maps are tailored for agencies like the Federal Highway Administration, the Environmental Protection Agency, and the U.S. Army Corps of Engineers. Map content layers reference names and boundaries maintained by entities such as the U.S. Board on Geographic Names, the Bureau of Indian Affairs, and the U.S. Postal Service.
Production workflows draw on authoritative datasets from the National Hydrography Dataset, the National Elevation Dataset, and the National Land Cover Database. Cartographic features integrate imagery from the Landsat program, the National Agricultural Imagery Program, and aerial photography collected by state departments such as the Florida Department of Environmental Protection. Place names and cultural features are reconciled with the Geographic Names Information System. Transportation and infrastructure layers rely on feeds from the Federal Railroad Administration, Federal Aviation Administration, and state departments of transportation like the Pennsylvania Department of Transportation. Floodplain and hazard data incorporate inputs from FEMA Flood Insurance Rate Maps and studies by the United States Geological Survey Landslide Hazards Program. Vertical control references include inputs from the National Geodetic Survey.
Products are distributed as downloadable raster PDFs, GeoPDFs, and GeoTIFFs through platforms linked to the The National Map and partner portals such as the Data.gov catalog and the USGS Store. Web services implement standards from the Open Geospatial Consortium including Web Map Service and Web Feature Service layers used by consumers like the Esri platform, Google Earth Engine, and the ArcGIS Online ecosystem. Print-on-demand options have been used by the National Archives and Records Administration and university libraries including the University of Michigan. Mobile applications from vendors like Trimble and Garmin consume U.S. Topo data via KML and GeoJSON exports for field crews from organizations such as the American Red Cross and The Nature Conservancy.
The series adopts accuracy standards aligned with the National Standard for Spatial Data Accuracy and integrates periodic revisions driven by the USGS National Map Corps volunteer program, agency updates from the U.S. Forest Service Region offices, and state geographic information offices including the Oklahoma Geospatial Information and Mapping Center. Elevation accuracy is supported by LiDAR collections from projects coordinated with the U.S. Army Corps of Engineers and the Federal Emergency Management Agency’s Hazus program. Update cycles have been subject to policy guidance from the Office of Science and Technology Policy and funding appropriations from the United States Congress and the Department of the Treasury.
U.S. Topo maps are used by field staff from the National Park Service, researchers at the Smithsonian Institution, emergency managers in FEMA Region II, planners at the Metropolitan Transportation Authority (New York), natural resource managers at the Bureau of Land Management, and engineers at the U.S. Army Corps of Engineers. Recreational users include members of the Appalachian Trail Conservancy, the Sierra Club, and organizations such as the Boy Scouts of America. Academic use spans departments at institutions like Harvard University, Stanford University, University of California, Berkeley, and Massachusetts Institute of Technology for studies in geology, ecology, and urban planning. Commercial applications involve firms such as Jacobs Engineering Group, AECOM, Cardno, and WSP Global.
Adoption prompted commentary from stakeholders including the National Governors Association, the Association of American Geographers, and the American Congress on Surveying and Mapping. Praise highlights integration with The National Map and interoperability with Esri and Google platforms, while criticism has focused on concerns raised by the International Map Industry Association and academic reviewers about raster-only distribution, perceived loss of traditional cartographic aesthetics archived by the Library of Congress, and update latency compared with commercial providers like Here Technologies and TomTom. Debates have involved funding decisions by the United States Congress, standards set by the Federal Geographic Data Committee, and interoperability recommendations from the Open Geospatial Consortium.
Category:United States Geological Survey maps Category:Topographic maps