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Mountains to Sound Greenway National Heritage Area

Mountains To Sound Greenway Trust

Connected with nature, our lives are better

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Calendar of Events

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Wed, September 17
Nursery Event at Lake Sammamish State Park
Wed, September 17
Issaquah Creek Restoration Walking Tour
Thu, September 18
Structure Maintenance on Middle Fork Trail
Fri, September 19
Trailhead Ambassador – Pete Lake
Fri, September 19
Issaquah Creek Restoration Walking Tour
Sat, September 20
Habitat Restoration at Lake Sammamish State Park
Wed, September 24
Nursery Event at Lake Sammamish State Park
Thu, September 25
Nursery Event at Lake Sammamish State Park
Fri, September 26
Trailhead Ambassador – Pete Lake
Fri, September 26
Resilience Film Fest at Central Washington University
Sat, September 27
National Public Lands Day in Kittitas County
Sat, September 27
Trailhead Ambassador – Pete Lake
Thu, October 2
Habitat Restoration at Lake Sammamish State Park
Fri, October 3
Trail Maintenance and Restoration at Oxbow Loop Trail
Sat, October 4
Habitat Restoration on Lake Washington Blvd
Fri, October 10
Trail Maintenance on Garfield Ledges Trail
Sat, October 11
Annual Tree Planting Celebration 2025!
Fri, October 17
Trail Maintenance on Garfield Ledges (Day 2)
Sat, October 18
Planting at Lake Sammamish State Park
Sat, October 18
Trail Maintenance on Garfield Ledges (Day 3)
Fri, October 24
Planting at Lake Sammamish State Park
Fri, October 24
Trail Maintenance on Denny Creek Trail
Sat, October 25
Green Seattle Day at Discovery Park

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  • Explore
    • Interactive Map
    • Itineraries
    • Outdoor Activities
    • Stories
    • Greenway Regions
    • Plan Your Visit
  • Get Involved
    • Volunteer Program
    • Events
    • Environmental Education Program
    • Advocacy
    • Newsletter Sign-up
  • Support
    • Ways to Give
    • Corporate Support
    • Shop for Greenway Gear
    • Annual Celebration
    • Spring Fundraising Breakfast
  • About Us
    • Our Work
    • Blog
    • In The News
    • Staff and Leadership
    • Community Commitment
    • Careers
    • Requests for Bids and Proposals
    • Contact Us
  • Donate
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2701 First Avenue, Suite 240, Seattle, WA 98121 | 206.382.5565 | info@mtsgreenway.org

© 2025 Mountains to Sound Greenway Trust | EIN: 91-1531234 | Kinsta | Site Credits.
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