National Geologic Map Database (NGMDB)
Is a Congressionally mandated national archive of geoscience maps, reports, and stratigraphic information. The NGMDB contains information on more than 90,000 maps and related geoscience reports published from the early 1800s to the present day, by more than 630 agencies, universities, associations, and private companies.
Natural Earth is a public domain map dataset available at 1:10m, 1:50m, and 1:110 million scales. Featuring tightly integrated vector and raster data, with Natural Earth you can make a variety of visually pleasing, well-crafted maps with cartography or GIS software.
Directs NOAA to establish and implement the Digital Coast to: (1) collect data concerning coastal elevations, land use and cover, habitat and submerged aquatic vegetation, parcels, planimetrics, socioeconomics, and human use; and (2) integrate other data sources for the broadest measure of coastal resource management constituents and applications.
The National Map
The geographic information available from The National Map includes orthoimagery (aerial photographs), elevation, geographic names, hydrography, boundaries, transportation, structures, and land cover.
TopoView - United States Geological Survey (USGS)
TopoView highlights one of the USGS's most important and useful products, the topographic map. Purpose is to provide a digital repository of USGS 1:250,000 scale and larger (more detailed) maps printed between 1884 (the inception of the topographic mapping program), and 2006. All of the topo maps can be downloaded in multiple formats, JPEG, Geo-PDF, Geo-TIFF, KMZ.
United States Geological Survey (USGS)
Presented here is a collection of geospatial data derivatives obtained from many sources including maps, aerial photographs, and remote sensors. Included is a list of public-domain software developed by USGS scientists and partners to support a wide variety of natural science research and mapping activities. Direct access is provided via browsable links through our FTP Server and Amazon's Cloud. Navigate to the appropriate theme folders to access staged products for download.
The Geospatial Data Gateway (GDG) provides access to a map library of over 100 high resolution vector and raster layers in the Geospatial Data Warehouse. It is the One Stop Source for environmental and natural resources data.
USDA NRCS Soil Survey
Official USDA soil information as viewable maps and tables for more than 3200 soil surveys. Listing of Soil Surveys by State – current and out-of-print soil surveys and contact information for requesting a paper or CD copy.
The USGS EarthExplorer (EE) tool provides users the ability to query, search, and order satellite images, aerial photographs, and cartographic products from several sources. In addition to data from the Landsat missions and a variety of other data providers, EE now provides access to MODIS land data products from the NASA Terra and Aqua missions, and ASTER level-1B data products over the U.S. and Territories from the NASA ASTER mission.
USGS Topographical Maps Archive
In 2009, USGS began the release of a new generation of topographic maps (US Topo) in electronic form, and in 2011, complemented them with the release of high-resolution scans of more than 178,000 historical topographic maps of the United States.