Geologic Mapping at 1:250,000 Scale
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Geologic Mapping at 1:250,000 Scale 
 

Washington 1:250,000-scale quadrantsMapping at 1:250,000 scale was produced by combining and simplifying completed 1:100,000-scale geologic mapping to produce four maps, one for each quadrant of Washington. With the 2002 release of the full-color printed geologic map of the state’s northwest quadrant, all four quadrant maps are now available from the Geology and Earth Resources Division.

  • Geologic Map 34: Geologic Map of Washington--Southwest Quadrant (1987)
  • Geologic Map 39: Geologic Map of Washington--Northeast Quadrant (1991)
  • Geologic Map 45: Geologic Map of Washington--Southeast Quadrant (1997)
  • Geologic Map 50: Geologic Map of Washington--Northwest Quadrant (2002)

To order these and other publications of the Geology and Earth Resources Division, please visit our Publications page.

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 Contacts

Dave Norman
State Geologist and Oil & Gas Supervisor
360-902-1439
dave.norman@dnr.wa.gov

 Files

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