National Geospatial Program
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The National Geospatial Program (NGP) provides a foundation of digital geospatial data representing the topography, natural landscape, and manmade environment of the United States. Customers can incorporate NGP geospatial products and services into their decision making and operational activities. NGP data and derived products and services can be accessed through The National Map Data Download.
Topographic Maps
US Topo maps and the Historical Topographic Map Collection (HTMC) are produced by the National Geospatial Program of the USGS.
Learn More3D Elevation (3DEP)
3DEP is a cooperative program with a goal of acquiring nationwide lidar (IfSAR in AK) by 2023 to provide the first-ever national baseline of consistent high-resolution elevation data – both bare earth and 3D point clouds.
Learn MoreNews
New Mapping Challenge! Schools in Arkansas
As we continue to prepare states for Topo production, here is another challenge for Arkansas schools! Features participating in this challenge include General Schools, Elementary Schools, Middle Schools, and High Schools.
New Mapping Challenge! City/Town Halls in Arkansas
TNMCorps mapping challenges are now transitioning to the southeast with a new challenge for city/town halls in Arkansas!
FINISHED!! TNMCorps Lightning Challenge for City / Town Hall Structures in ID
This Lightning Challenge is now complete!
Publications
User's guide for the national hydrography dataset plus (NHDPlus) high resolution
The National Hydrography Dataset Plus High Resolution (NHDPlus HR) is a scalable geospatial hydrography framework built from the High Resolution (1:24,000-scale or better) National Hydrography Dataset (NHD), nationally complete Watershed Boundary Dataset (WBD), and ⅓-arc-second (10-meter ground spacing) 3D Elevation Program (3DEP) digital...
Moore, Richard B.; McKay, Lucinda D.; Rea, Alan H.; Bondelid, Timothy R.; Price, Curtis V.; Dewald, Thomas G.; Johnston, Craig M.
U.S. Geological Survey accomplishments in cartography 2015-2019
The U.S. Geological Survey (USGS), the United States' official national topographic mapping organization, is building and maintaining geographic databases for fundamental base geographic layers of land cover, structures, boundaries, hydrography, geographic names, transportation, elevation, and orthoimagery as The National Map. Data from the 3D...
Usery, E. Lynn Problems of Large Spatial Databases
Large spatial databases often labeled as geospatial big data exceed the capacity of commonly used computing systems as a result of data volume, variety, velocity, and veracity. Additional problems also labeled with V’s are cited, but the four primary ones are the most problematic and focus of this chapter (Li et al., 2016, Panimalar et al., 2017...
Usery, E. Lynn