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.

Background Information --
Developing digital publication
guidelines for geologic maps

The Data Information Exchange Working Group is charged with developing certain proposed guidelines for producers of digital geologic maps -- specifically, what standard types of files should be "packaged" into a digital geologic map, to promote useability?

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Maintained by Dave Soller
last update: Oct. 22, 2003