Mountains to Sound Greenway & I-90 Trail

  • Address: 911 Western Ave, Suite 203, Seattle, WA 98104
  • Phone: (206) 382-5565
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The Mountains to Sound Greenway is a vibrant landscape of 101 miles between Thorp and Seattle’s waterfront along Interstate 90. The Greenway preserved forests, parks, wilderness areas, wildlife habitat, and the natural history of Washington.

The Greenway features hiking and biking trails connected by the historic transportation corridors, as well as a regional trail network. The Greenway is shaped by watershed boundaries: Snoqualmie and Lake Washington to the north, the Yakima to the east, the Cedar to the south, and Puget Sound to the west.