Geologic Mapping at 1:100,000 Scale
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Geologic Mapping at 1:100,000 Scale 
 

Washington 1:100,000-scale quadranglesThe geology of the entire state of Washington has been mapped at 1:100,000 scale, and is available both as published maps of 30- by 60-minute quadrangles and as statewide digital GIS data.

Published 1:100,000-scale Geologic Maps

Standard 1:100,000-scale geologic maps can be accessed through the PDF above. Maps with the prefix "DGER" were published by the Division of Geology and Earth Resources. Publications with the prefix "USGS" were published by the U.S. Geological Survey. Maps, including quadrant and whole-state maps, are listed by geographic location (on the map), and by map and author name (page down on the PDF). 7.5-minute quadrangles are listed separately. (Click on the inset map in the lower right corner of the PDF.)

All of these maps may be consulted at the Washington Geology Library in Olympia. They may also be available at a nearby university library. The quadrant and whole state maps can be purchased through the Washington State Department of Printing. See p. 3 of the Publication List.

Statewide Digital GIS Data

ESRI shapefiles of the 1:100,000-scale geology of the entire state are available online:

 

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 Contacts

Anne Olson
GIS & Publications Section Manager, and Lead GIS Analyst
360-902-1445
anne.olson@dnr.wa.gov

Jari Roloff
Geology & Earth Resources Division, Senior Editor
360-902-1457
jari.roloff@dnr.wa.gov

Robert Berwick
Geology & Earth Resources Division, GIS Analyst
360-902-1431
robert.berwick@dnr.wa.gov

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