Mountains to Sound Greenway Trust

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.

Get involved by volunteering, taking a self-guided walking or driving tour, donating, attending an Explore the Greenway event, and more! Learn more at mtsgreenway.org.