The park contains six distinct jump lines varying in difficulty from 'Happy Camper' for beginners to 'Flying Squirrel' for experts.
The trail network includes a 'Global Skills' area with wooden features, rock gardens, and drop zones for practicing specific technical maneuvers.
It was developed through a unique public-private partnership focused specifically on sustainable trail design for mountain biking.
The trails are constructed to be flow-oriented, emphasizing rider momentum rather than purely steep elevation changes.
The 'Big Tree' junction is a massive old-growth conifer that serves as the geographical and social center of the park's trail layout.
Duthie Hill Mountain Bike Park is a purpose-built 84-acre mountain bike park in Issaquah, Washington, specifically designed for technical riding and progressive skills development. The park features an extensive network of cross-country trails and a central hub known as the 'Big Tree' that serves as the main intersection for all paths. Riders can access various jump lines, technical skills areas, and flow trails ranging from beginner-friendly to double-black diamond difficulty. The park is managed as part of the King County park system and is maintained through a long-standing partnership with the Evergreen Mountain Bike Alliance. All trails are one-way for safety, and the terrain is heavily forested, providing natural coverage throughout the seasons. The park is built on a hillside, requiring cyclists to pedal or walk back up from the bottom sections to return to the central hub.
The wooden features or the log rides in the Central Skills area provide excellent action photography opportunities.
Check the Evergreen Mountain Bike Alliance trail status page before visiting to ensure conditions are safe after heavy rain.
Bring a basic bike repair kit, as there are no on-site rental or full-service mechanical shops.
Study the trail map at the central hub before starting, as the dense forest can make navigation disorienting for first-time visitors.
Do not attempt to ride black diamond or double-black diamond jump lines without prior experience, as the features are significant and carry high risk of injury.
Trails may close temporarily following heavy rainfall to prevent severe damage to the soft soil; check local trail status reports.
Helmets are mandatory. Yield to riders climbing uphill. Stay strictly on marked trails to prevent erosion and protect sensitive forest floor vegetation.
