Greenway Regions

The Mountains to Sound Greenway National Heritage Area (Greenway NHA) is a diverse landscape stretching 100 miles from Seattle to Ellensburg along Interstate-90 (a National Scenic Byway) in Washington state. At 1.5 million acres, it’s a lot of ground to cover! When talking about our work as an environmental nonprofit, as well as all of the things to see and do across the landscape, you’ll often hear us break the Greenway NHA down into four distinct regions: Urban Communities, Snoqualmie River Valley, Middle Fork Snoqualmie Valley, and the Upper Yakima Basin.

The map below will help you get the lay of the land, and we invite you to click and dive into each region’s page to learn more and discover what makes that area unique.

Including land conservation and ownership, watersheds, and regional trails.

Tips to Plan Your Visit

We know a thing or two about spending time in the Greenway NHA, and we have some partners with great resources, too! Check out our list of helpful tips and tools to help plan your visit, including how to get around the Greenway NHA, understanding recreation passes and permits, where to go hiking, and more.