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USGS NGA
Foreign geographic names provided by National Geospatial Intelligence Agency
— Organization: U.S. Geological Survey, Department of the Interior
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USGS Theme Overlay Map Services from The National Map
There is no description for this harvest source
— Organization: U.S. Geological Survey, Department of the Interior
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USGS Cached Base Map Services from The National Map
There is no description for this harvest source
— Organization: U.S. Geological Survey, Department of the Interior
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The National Map Acquisition Plans
There is no description for this harvest source
— Organization: U.S. Geological Survey, Department of the Interior
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USGS National Geologic Map Database
The NGMDB is a Congressionally mandated national archive of geoscience maps, reports, and stratigraphic information, developed according to standards defined by the cooperators (principally the USGS and the Association of American State Geologists). Included in this system is a comprehensive set of publication citations, stratigraphic nomenclature, downloadable content, unpublished source information, and guidance on standards development. The NGMDB contains information on more than 94,000 maps and related geoscience reports published from the early 1800s to the present day, by more than 630 agencies, universities, associations, and private companies.
— Organization: U.S. Geological Survey, Department of the Interior