2.9
(14)
34
riders
03:14
26.8km
1,000m
Mountain biking
Experience the difficult 16.7-mile Engineer Mountain Trail, a high-alpine mountain biking route with stunning views in San Juan National For
Last updated: February 26, 2026
Tips
Includes a very steep uphill segment
You may need to push your bike.
After 6.61 km for 5.38 km
Waypoints
Start point
Parking
12.0 km
Highlight (Segment) • Trail
Tip by
19.4 km
Highlight (Segment) • Trail
Tip by
26.8 km
End point
Parking
Way Types & Surfaces
Way Types
18.0 km
8.65 km
168 m
Surfaces
17.2 km
9.54 km
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Monday 12 October
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4°C
74 %
Additional weather tips
Max wind speed: 17.0 km/h
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This route was planned by komoot.
The trail offers diverse and often technical terrain. You'll encounter technical sections, roots, and switchbacks, with some rock gardens. Expect steep uphill grades, which can be challenging due to high altitude and loose dirt. The route also includes rutted and potentially slippery sections, especially when wet. It traverses beautiful aspen groves, spruce-fir forests, and sub-alpine meadows.
No, the Engineer Mountain Trail is rated as 'Blue difficulty' (Intermediate/Difficult) with a 'Hard' physical rating. It's not recommended for beginners due to its strenuous nature, high altitude, and technical sections including roots, rocks, and steep grades. Some parts, like a short but steep descent from Molas Pass, are particularly challenging.
The best time to ride is typically from July through September. During July and August, the sub-alpine meadows burst with wildflowers, adding to the spectacular scenery. Being a high-alpine trail, it's usually clear of snow and most accessible during these summer months.
The Engineer Mountain Trail is often ridden as a point-to-point route, frequently involving a shuttle. A common access point is from the top of Coal Bank Pass via the Pass Creek Trail. Parking is generally available at these access points, but it's advisable to check specific trailhead information for current conditions and capacity, especially for shuttle arrangements.
The Engineer Mountain Trail is located within the San Juan National Forest. Generally, there are no specific permits required for day-use mountain biking on the trail itself. However, standard National Forest regulations apply. It's always a good idea to check the USDA Forest Service website for any updates on fees or regulations for the San Juan National Forest before your visit.
Yes, dogs are generally allowed on the Engineer Mountain Trail within the San Juan National Forest. However, they must be kept on a leash to protect wildlife and ensure a pleasant experience for all trail users. Please remember to pack out all pet waste.
The trail is renowned for its spectacular scenery. You'll be treated to panoramic vistas of the lower valley and the majestic Needle and Grenadier mountain ranges, especially from higher elevations. The route winds through vibrant aspen groves, spruce-fir forests, and opens into sub-alpine meadows with sweeping views of the Needles Mountains and Animas Valley. Much of the ride is between 11,000 and 12,000 feet, offering expansive high-country views.
Yes, the route features notable sections such as the main Engineer Mountain Trail itself, known for its high-alpine cross-country riding. A major draw is also the thrilling Engineer Mountain Trail (Downhill Section), which offers a significant vertical drop over several miles.
Yes, the route also passes through sections of the Engineer Mountain Trail, Engine Creek Trail, Cascade Creek Trail, Coal Creek Trail, Pass Trail, and White Creek Trail. It can also be linked with the Colorado Trail from Molas Pass for a more strenuous, longer ride.
Given the high-alpine environment and challenging nature, you should bring plenty of water, high-energy snacks, appropriate layers of clothing for changing weather, sun protection, a first-aid kit, and essential bike repair tools. A GPS device or map is also recommended, as cell service can be unreliable.
Many riders opt for a point-to-point experience, often utilizing a shuttle or arranging a ride back to their starting point, as the trail is famous for its significant and thrilling downhill sections. Consider starting from the top of Coal Bank Pass via the Pass Creek Trail for a classic approach, or for a truly epic challenge, link up with the Colorado Trail from Molas Pass.
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