The National Geologic Map Database contains digital copies of recent and historic geologic maps of the United States and its territories from over 60 publishers including the USGS, state geological surveys, other governmental agencies, societies, universities and private sector publishers. Features include an advanced search, stratigraphic charts and guidelines, an index of geologic terms, information about current geologic mapping projects, and MapView, a map-based visual browsing interface.

Explore More Databases By Vendor

Free Resource

Explore Related Databases By Topics

Statistics and Data, Geology Hydrology and Meteorology, Geography and GIS, Environmental Science