New Poster—Folds and Fossils of the Chuckanut Formation

A new map poster is available titled Folds and Fossils of the Chuckanut Formation in Northwestern Washington.

Image of the Month Addendum!

We received some great feedback from geologist Stephen Slaughter with reference to the March Image of the Month (showing a honeycomb-like sedimentary structure on Sucia Island in San Juan County) that we want to share! Stephen wishes to highlight the work of George Mustoe (WWU) in describing these features, saying “[Mustoe] attributes the honeycomb shape […]

March Image of the Month: Echo Bay, Sucia Island, San Juan County, WA

Our March image of a fantastical sedimentary outcrop in Echo Bay, Sucia Island comes from Geology Division IT specialist and avid sailor, David Jeschke, who took the picture on one of his many voyages. He tells us that “this is an Eocene continental sedimentary deposit of the Chuckanut formation. Wind driven waves from Boundary Pass […]