Washington Geological Survey


Surficial geologic map for Sadie Creek fault, Clallam County

On May 11 we released a 1:10,000-scale surficial geologic map for Sadie Creek fault in Clallam County. Click here to view this map.

Updated GIS data for 1:250,000-scale geologic maps

On May 9 we released an updated digital dataset for our 1:250,000-scale surface geology of Washington to align with new federal data standards. Click here to download this new data.

Updates to webpage on Washington's Glacial Geology

On April 25 we updated some of the content on our webpage about Washington's Glacial Geology. Check out the new sections Alpine Glaciers and Future of Washington's Glaciers.

New GIS data for 1:25,000 to 1:99,000 geologic maps

On April 4 we released a new dataset on our Geologic Information Portal, which can be viewed and downloaded here. The initial release includes 10 maps but many more will be added soon.

Aggregate resource mapping fact sheet

On March 31 we released a new fact sheet that explains how WGS can help counties and cities with their land-use planning by providing aggregate resource maps. View the fact sheet here.

Visit our blog to see more announcements and updates.