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Mountains To Sound Greenway

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Mountains to Sound Greenway

Interstate highways often become the province of strip malls, billboards and spreading urban development. But people in the Pacific Northwest wanted a different future for the historic road over Snoqualmie Pass.

In 1990, local citizens created a plan for the Mountains to Sound Greenway to keep an accessible landscape of forests, wildlife habitat and open spaces as breathing room for people, and a place of incomparable beauty, history and outdoor recreation for their children and grandchildren.

Today, the Greenway stretches along 100 miles of Interstate 90 in Washington State from the waterfront in Seattle to the edge of desert grasslands in Central Washington.

Much of the landscape is in public ownership, and this stretch of the highway is a National Scenic Byway. The Greenway includes communities and historic towns, working farms and forests, spectacular alpine scenery, wildlife habitat, campgrounds, trails, lakes and rivers right in our backyard.

People of all ages enjoy the Greenway.

Please join us to plant trees
 this weekend
in the Greenway!


REI volunteer planting trees

 Make a gift  that will protect this
landscape for future generations

Sign up your classroom for
environmental education activities

Volunteer for trail maintenance or
environmental restoration events

Get outside in the Greenway or
order your free copy of  the
Greenway Adventures brochure

Learn about the Greenway

Visit the Greenway Press Room

Now Hiring! Apply for a Greenway Job












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