10: Duthie Hill Mountain Bike Park
Duthie Hill Mountain Bike Park - King County Parks
A Plateau Amenity Worth Knowing
We’ve mentioned Duthie Hill a few times already in this series, in the outdoor life post and again in the Trossachs neighborhood spotlight, and it deserves its own closer look. This isn’t a neighborhood park with a bike rack. It’s a genuinely world-class, purpose-built mountain bike park that draws riders from across the region, and it sits close enough to Sammamish’s southeastern edge that it functions as a real amenity for the plateau even though it’s technically just outside city limits.
What’s actually there
Duthie Hill covers 120 acres of dense evergreen forest, Douglas fir and western hemlock, with well-draining soils that keep it rideable close to year-round. The trail layout is distinctive: a six-mile network of rolling singletrack forms a four-leaf clover shape around a 2.5-acre central clearing. That clearing is the social hub of the park, with informational kiosks, skill-building features, a picnic shelter, and an engraved donor bench.
Inside each of the four “cloverleaf” lobes, riders find downhill-only freeride trails loaded with berms, jumps, and drop-offs, each lobe has its own character and difficulty range. The outer, cross-country style trails ring the whole park and are shared, one-way, and open to hikers and trail runners as well as bikers.
[PHOTO PLACEHOLDER: a jump line or berm feature, to show the freeride side of the park]
Trail breakdown
A few of the named trails riders navigate by, with approximate length and difficulty:
• Braveheart — advanced, 0.39 miles. The only advanced-rated cross-country trail at Duthie, mostly fast and flowy with a rock garden entrance and an off-camber root roll that bumps up the difficulty.
• Step It Up — intermediate, 1.3 miles. One of the longer cross-country style trails, fast and flowy with optional skinnies and log rides along the way.
• Movin’ On — intermediate, 0.83 miles. More technical than Step It Up, with tight turns, ladders, bridges, and skinnies throughout, a good training trail.
• Ryans — intermediate, 0.29 miles. Short, fun, and flowy.
• The Great Space Coaster — advanced, a feature-rich trail branching off “Bootcamp” with North Shore-style ladder bridges and skinnies, a real test of balance.
Beyond the park boundary itself, Grand Ridge Park connects directly to the south with its own popular cross-country riding, and the trails at Soaring Eagle Regional Park are accessible less than 2 miles to the north.
[PHOTO PLACEHOLDER: a technical feature like a skinny, ladder bridge, or log ride from the central clearing skills area]
Who built it, and who takes care of it
Duthie Hill was designed and built by the Evergreen Mountain Bike Alliance in partnership with King County, funded through King County’s Community Partnerships and Grants program along with Youth Sports Facilities grants, roughly $225,000 in private donations, and thousands of hours of volunteer labor. Phase 1 opened in 2010; Phase 2 completed in May 2012. The park now sees an estimated 100,000 rider visits a year, and Evergreen continues to maintain the trails through ongoing volunteer stewardship.
The Evergreen Mountain Bike Festival is held at Duthie every June and draws riders from across the region for a full day of racing, demos, and community events.
Who can ride, and the rules that keep it working
Duthie Hill is genuinely built for every skill level, from kids on push bikes learning to balance in the clearing to expert riders chasing the advanced lines. A few rules worth knowing before a first visit:
• All trails are one-way. Signage at each trailhead marks direction, and the whole system depends on everyone riding the correct way.
• The cross-country and perimeter trails are shared with hikers and trail runners; the downhill freeride trails inside each cloverleaf are bike-only.
• No overnight parking. The lots are day-use only.
• Pack out your trash. Facilities are minimal beyond a single restroom near the main lot.
• Evergreen’s youth and teen dirt camps require full-face helmets for advanced sessions, a good baseline expectation for anyone riding the more technical freeride lines, even outside a formal class.
Evergreen also runs a full slate of classes and camps at Duthie, from beginner-level youth dirt camps (ages 8 to 13) through intermediate and advanced teen and adult sessions, plus skills clinics for riders looking to progress. Scholarships are available for camps based on financial need.
Accessibility and adaptive riding
Worth being upfront about what this is and isn’t: Duthie Hill is natural-surface singletrack throughout, not a paved trail, and it isn’t a standard wheelchair-accessible path the way sections of the Sammamish River Trail or Cedar River Trail are. That said, it’s become a genuine, well-documented destination for adaptive mountain biking, more so than most parks in the region.
Evergreen Mountain Bike Alliance launched an Adaptive Mountain Bike (aMTB) program a few years back in partnership with Outdoors for All, a Seattle-based nonprofit founded in 1979 that provides adaptive outdoor recreation for children and adults with disabilities. Outdoors for All runs a beginner mountain biking series at Duthie Hill specifically, using electric-assist adaptive mountain bikes, handcycles, prone cycles, and recumbent trikes, alongside standard two-wheeled bikes, for riders who are already comfortable on a bike but new to mountain biking. Registration is required and eligibility criteria apply; details are on the Outdoors for All website.
On the trail-building side, Evergreen’s crews have been physically modifying parts of Duthie, widening the Bootcamp trail in particular, using what they call “universal trail design”: removing pinch points and cutting brush wider, without changing the character or difficulty progression of the trail itself, so a broader range of equipment can actually ride it. New connector trails added in recent years also mean riders can get from the parking lot to the central clearing entirely on trail, without using the access road, which matters for anyone for whom the road shoulder isn’t a safe or practical option.
King County Parks has highlighted Duthie Hill directly in its own accessibility materials as a place where adaptive mountain biking is demonstrated in practice, which is a meaningful acknowledgment for a park that started out built purely for traditional two-wheeled riding.
Getting there
The park sits on the Sammamish Plateau at the Issaquah-Fall City Road entrance, with a roughly 74-vehicle parking lot on the north side of the road. King County Metro routes 269 and 554 stop on Issaquah-Pine Lake Road SE nearby, so it’s reachable without a car for riders coming from elsewhere on the plateau. On busy weekends, overflow parking has historically been available at nearby schools, though that’s worth confirming directly with Evergreen or King County before counting on it.
The layout, at a glance
Map courtesy of King County Parks and Evergreen Mountain Bike Alliance.
This is a supplementary post in our Why Sammamish? series, expanding on a landmark first mentioned in our outdoor life post and our Trossachs neighborhood spotlight.
Kelly Azzarello Real Estate | Compass 📧 kelly@kellyazzarello.com 📞 (425) 830-6457 🌐 kellyazzarello.com
