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Welcome to the Mountains to Sound Greenway National Heritage Area
The Mountains to Sound Greenway National Heritage Area is a unique geographic corridor made up of connected ecosystems and communities spanning 1.5 million acres from Seattle to Ellensburg along Interstate-90 in Washington state. The Mountains to Sound Greenway Trust is a coalition-based organization that leads and inspires action to conserve and enhance this special landscape, ensuring a long-term balance between people and nature.
Give Back and Double Your Impact This Fall!
From October 1 to December 3, the Mountains to Sound Greenway Trust is raising essential funds for tree planting and stewardship in the Greenway NHA. For every $25 donation, we’ll plant a tree in your name in the Mountains to Sound Greenway National Heritage Area. PLUS, thanks to Carter Subaru, your impact is doubled—so two trees will be planted!
Help us invest in a greener future by planting a forest… one tree at a time.
Join Us at an Upcoming Event
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