Washington Geological Survey


New Geophysical Database released

On April 20 we published a new compilation of geophysical measurements made as part of various studies throughout Washington. You can view the data on our Geologic Information Portal.

New Geologic Information Portal Glossary

On April 17 we released a new Glossary to accompany our Geologic Information Portal. The Glossary provides easily understandable explanations of every data layer on our Portal. Click here to check it out.

New aggregate resource inventory for Kitsap County

On April 3 we published the first in a series of new maps of aggregate resources. Click here to download the plate and pamphlet. The data are also viewable on our Geologic Information Portal here.

3,344 Records added to the Subsurface Database

In March, we added 3,344 records from Spokane, Lewis, Thurston, and Kittitas Counties to our Subsurface Database. Click here to view the data on the Geologic Information Portal or here to download a zip file.

Visit our blog to see more announcements and updates.