Our Work

Conserving and Enhancing the Mountains to Sound Greenway National Heritage Area

The Mountains to Sound Greenway Trust works to steward the 1.5-million-acre landscape that stretches from Seattle to Ellensburg along I-90. We lead collective action to conserve and restore natural lands and wildlife habitat; build and maintain sustainable trails; empower the next generation of environmental changemakers; advocate for public lands; lead a robust volunteer program; and enhance connections to nature for all. We are also the organization behind the Mountains to Sound Greenway National Heritage Area, which honors the historical and cultural significance of this place, and helps to preserve and celebrate its living heritage.

Click below to learn more about each of our program areas and to see a few highlighted projects.