Read our Blog
What's new in the Greenway
Support Our Work
Ways to give
Our Year in Review
View our Annual Report

Connected with nature, our lives are better

We are healthier and happier, and our communities are stronger, more equitable, and more economically competitive. Enhancing people’s connections to nature drives our mission.

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. 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. Learn more About Us

Latest News
Restoration Work at Ballinger Open Space

Imagine this: you come home after a long day.  The sun is shining, and you want to go outside, but can’t go too far. Right in your backyard is a green space with a small creek running through

Continue Reading : Restoration Work at Ballinger Open Space

Microtrash: Not a Micro Problem

Let’s start with a little activity. Close your eyes and think about the last time you went outside: was it a walk around your neighborhood, a meet up at your local park, or even a trip out

Continue Reading : Microtrash: Not a Micro Problem

How the Greenway is Part of the “Poop Loop”

Being environmentally sustainable and responsible can come in many forms, from using reusable straws to going zero waste. If you live in King County, you’ve been helping out the environment, whether you realize it or

Continue Reading : How the Greenway is Part of the “Poop Loop”

See more news
Get Involved

April 24

Online Career Event: Jobs for Clean Water

Learn More: Online Career Event: Jobs for Clean Water

April 24

Clean Water Career Events

Learn More: Clean Water Career Events

April 28

Nature and Health Spring Talk: Dr. Jennifer D. Roberts (Online)

Learn More: Nature and Health Spring Talk: Dr. Jennifer D. Roberts (Online)
See more events

Response to COVID-19 Pandemic

The Greenway Trust shares our community’s concern about the COVID-19 virus. Based on current recommendations from King County, State, and Federal health officials, the Mountains to Sound Greenway Trust is making some modifications to our operations and programming.

Click here for the latest updates on Greenway Trust operations and programming.

Click here for information about recreation closures and alternative ways to enjoy nature near home.