01 / Regional Overview
Where we ride.
The Cascades to Sound chapter covers the Seattle metro area, the Issaquah Alps, the I-90 corridor, and partner systems north to Bellingham. It's the largest chapter in the Evergreen network — both by membership and by trail count.
Signature trail systems include Tiger Mountain, Duthie Hill Mountain Bike Park, Tokul, Raging River, Olallie State Park, Galbraith Mountain (in partnership with WMBC), Stossel Creek, Tolt MacDonald, and the I-5 Colonnade urban bike park.
The chapter runs weekly work parties from spring through fall, plus winter maintenance days and an annual chapter ride. New riders are welcome at every event — no experience required, no equipment to bring beyond water and gloves.
02 / Chapter Leadership
Your local crew.
The volunteers who lead this chapter — work party organizers, advocacy point people, and your direct line to local trail decisions.
03 / Get Out There
Work parties
this month.
Show up. Build trail. Find your people. The list below is filtered to Cascades to Sound — for the full statewide calendar, hit the link.
04 / Local Projects
What's being built
nearby.
Active trail projects in the Cascades to Sound region. Your chapter dues and donations help fund all of them.
Raging River Trail E
New descent trail at Raging River Phase 4. Berms on the upper section complete — now roughing in the lower section. Opens fall 2026.
Tokul Connector
3-mile connector between Tokul East and West, opening up loops without backtracking. Fundraising underway.
Duthie Maintenance
Work underway on Jabulani, Luna Lines, Flying Squirrel, Double Trouble, and Paramount. New picnic tables and clearing improvements in the main area.
05 / Fund This Chapter
Your gift
stays local.
Designate your donation to Cascades to Sound and 100% of it stays in the region — funding work party operations, local advocacy, and the projects above.
Build the trails
in your backyard.
Every Cascades to Sound dollar funds the work parties at Tiger, the projects at Tokul, the maintenance at Duthie, and the chapter staff hours that make it all happen.
📍 Designating to: Cascades to SoundStay connected
with Cascades to Sound.
Get chapter updates, work party notices, and local trail news.