Explore, enjoy and protect the planet

About Us

Contact Us

To contact us or to see a map of our office location, please visit our Contact page.


The Sierra Club organizes into groups focused on the environmental concerns within our local communities. The Cascade Chapter encompasses most of Washington State -- all the groups listed on the Groups page.


The Cascade Chapter organizes its work through more than a dozen committees focused on issues such as conservation and legislation. The Executive Committee oversees the chapter as a whole. For details, please see the Committees page.

Press Room

For the latest Cascade Chapter press releases, please visit our Press Room.


The Cascade Chapter publishes the bimonthly Cascade Crest newsletter.

Web Support

For questions about this web site, please contact Cascade Web Support or email cascade.chapter@sierraclub.org.