Upper Yakima Basin

The Upper Yakima Basin spans the entire eastern half of the Mountains to Sound Greenway National Heritage Area, stretching from high alpine wilderness in the Cascades to high value agricultural lands in the Kittitas Valley near Ellensburg.  Rich in natural resources, communities like Roslyn and Cle Elum celebrate their mining and logging legacies even as tourism and outdoor recreation become more important parts of the local economy.

Tours and Itineraries

Road Trip Along the Mountains to Sound Greenway National Scenic Byway
Choose your own adventure and travel at your own pace with this road trip inspiration. Journey from the vibrant Puget Sound area, through thick forests,
10 Birds to See in the Teanaway Community Forest
The diverse habitats of the Teanaway Community Forest total 50,241 acres (more than half the size of Seattle). They range from lush riparian corridors along the
8 Great Places to See Birds in the Greenway
“One of the things I love most about birds is that you can find them almost anywhere — from city parks to remote wilderness. And because

Learn About Our Work in the Upper Yakima Basin

From trail building and maintenance, to habitat restoration, coalition leadership, and more — we’re hard at work on the Greenway’s east side!

Read the Latest News

What Makes a “Sustainable” Trail?
The Mountains to Sound Greenway National Heritage Area is home to a huge number of trails that allow access to beautiful mountain tops, waterfalls, and
Learn More What Makes a “Sustainable” Trail?
Four Tips to Be a Responsible Visitor in the Greenway NHA
This post was created in collaboration with Jaime Martin, Director of Governmental Affairs & Special Projects for the Snoqualmie Tribe. May 7-13, 2023 marks the 40th
Learn More Four Tips to Be a Responsible Visitor in the Greenway NHA
Creating a Sustainable Future: Actions for Environmental Stewards During Earth Month and Beyond 
As environmental stewards, we all want to leave the land better than we found it. Earth Month is an opportunity to reflect on how we
Learn More Creating a Sustainable Future: Actions for Environmental Stewards During Earth Month and Beyond