Southwest Region

Olympic mountains photo
Our Southwest Region (SWRO) includes Clallam, Clark, Cowlitz, Grays Harbor, Jefferson, Lewis, Mason, Pacific, Pierce, Skamania, Thurston, and Wahkiakum counties.

Topics of interest in the Southwest Region

Puget Sound

Puget Sound is critical to our environment, culture, and economy. About two-thirds of the state’s population lives in the Puget Sound region. Our nation’s second largest marine estuary faces a number of challenges related to population growth and development, as well as habitat loss and multiple sources of pollution. Learn more about protecting Puget Sound.

Air quality issues

Do you use a wood stove to heat your home? Check to see if there is an air quality burn ban in your area. We also have information about how to use your wood stove more efficiently and the health affects of breathing smoke.

Every day is Earth Day

For Ecology, Earth Day is more than just one day a year — it’s our mission every day.


Every year on April 22, millions across the planet celebrate Earth Day. It's an opportunity to honor our planet and a reminder that we all can take action to protect it.

For Ecology, Earth Day is more than just one day a year — it’s our mission every day. From responding to climate... Continue reading this blog...

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