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USGS Visual Identity link to USGS home page
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National Geologic Map Database logo
STATE-WIDE GEOLOGIC MAPS
(or geologic maps that cover the entire U.S. or North America)

Button to link to Help page Button to link to Completion Status page
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Map Area (Help)
(select one or more)
 Select any number of states from either the map (JavaScript enabled browser only) or the scrollable list. The currently selected states will be highlighted in the scrollable list. (Help)

US states image map


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Other Search Methods
Easy bar indicating progressive complexity of search options Complex
button link to place name search Inactive state map search button button link to quick search button link to comprehensive search
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button link to NGM home page
Your are welcome.

The National Geologic Map Database is managed by the USGS's National Cooperative Geologic Mapping Program in cooperation with the Association of American State Geologists.

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Last modified: August 31, 2007
URL http://ngmdb.usgs.gov/ngmdb/ngm_SMsearch.html