Coal Mine Subsidence
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Coal Mine Subsidence 
 

Abandoned coal mines underlie at least 50,000 acres in western and central Washington, in both rural and urban areas. Some of these mines are near the surface and pose a risk to buildings or other structures from mine collapse.

Information about the location and condition of coal mines is necessary to identify hazardous areas and develop effective mitigation. Our extensive Washington State coal mine map collection and staff expertise are invaluable in guiding development in these areas. We work with local goverments to accurately locate mines and interpret mine maps.

For more information on coal resources in Washington, go to the Washington Geology Library catalog and search the Subject field on "coal".

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 Contacts

Geologic Hazards Group
Geology & Earth Resources Division
Washington State Department of Natural Resources
360-902-1450
Fax 360-902-1785
dnrgeologyhazards@dnr.wa.gov

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

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