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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.

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PUBLICATIONS AND
GENERAL INFORMATION

General Reports (including the Geoscience Map Catalog)
Latest published report: May, 2009
Earlier reports: May, 2008 || May, 2007 || June, 2006 || April, 2005 || May, 2004 || May, 2003 || May, 2002 || May, 2001 || May, 2000 || May, 1999 || Oct., 1998 || May, 1998 || Dec., 1997 || June, 1995 || 1995 ||

Assessing the status of geologic map coverage in the U.S. (April, 2005) -- HTML | PDF

Geologic Names Lexicon ("GEOLEX") -- May, 2000

National Paleontology Database -- May, 2001

Overview of Geologic Mapping and Databases -- article in McGraw-Hill 2004 Yearbook of Science and Technology (676KB PDF file)

Standards Development -- see our Standards page for:
Geologic Map Symbolization
Geologic Map Database
     - data model
     - science terminology
     - data interchange format
     - database implementations
Map Publication Guidelines
Digital Mapping Techniques
Metadata


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This page is http://ngmdb.usgs.gov/Info/reports/
Maintained by Dave Soller (drsoller@usgs.gov)
last update: Aug. 25, 2011