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This Web site contains information on activities of the National Geologic Map Database Project (NGMDB). The NGMDB is a collaborative effort primarily involving the USGS and the Association of American State Geologists. This Web site contains informal, generally time-sensitive material intended for project members, cooperators, and interested parties.

Information for
NGMDB partners

Return to the NGMDB project home page

This page is
Maintained by Dave Soller (
last update: Nov. 2, 2004