4.8
(9395)
17,809
riders
02:38
17.8km
1,070m
Mountain biking
Embark on the Blackmore Trail, a difficult mountain biking route that challenges you with its substantial 3497 feet (1066 metres) of elevation gain over 11.1 miles (17.8 km). As you climb, you'll navigate through the dense Gallatin Forest, experiencing a mix of alpine singletrack and sections of loose rock. The…
Last updated: April 23, 2026
Tips
Includes very steep uphill segments
You may need to push your bike.
After 767 m for 1.38 km
After 2.78 km for 6.13 km
Waypoints
Start point
Parking
Get Directions
109 m
Highlight • Lake
Tip by
8.83 km
Highlight • Summit
Tip by
14.9 km
Highlight • Lake
Tip by
17.8 km
End point
Parking
Way Types & Surfaces
Way Types
17.5 km
300 m
Surfaces
17.5 km
300 m
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Elevation
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Weather
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Today
Wednesday 27 May
18°C
7°C
54 %
Additional weather tips
Max wind speed: 6.0 km/h
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This route was planned by komoot.
The trail offers a diverse range of terrain, including alpine singletrack, loose rock sections, lengthy rock gardens, and smooth forest paths. Riders should also be prepared for off-camber roots and significant sections where 'hike-a-bike' is necessary, especially on the ascent.
No, the Blackmore Trail is rated as a Black Diamond difficulty, indicating it's an expert-level route with an 'Extreme' physical rating. It features substantial elevation gain, technical terrain, and extended hike-a-bike sections, making it unsuitable for beginners.
The trail starts from the trailhead in Hyalite Canyon, near Bozeman, Montana. Parking is typically available at the trailhead, but it's a popular spot, so arriving early, especially on weekends, is advisable.
As you ascend, the trail winds through the Gallatin Forest to Blackmore Lake and then climbs to a cirque at the base of Mount Blackmore. From the saddle, you can enjoy panoramic views of surrounding mountains and look back down on Hyalite Reservoir.
The best time to ride is generally from late spring to early fall. Snow can linger on the mountainsides even into late summer, so checking conditions is crucial. Fall colors can also make for a particularly scenic ride.
Yes, dogs are generally allowed on the Blackmore Trail. However, it's important to keep them on a leash and practice Leave No Trace principles, especially since you'll be sharing the trail with hikers and horses.
No specific permits or entrance fees are required to access the Blackmore Trail itself. It is located within the Custer Gallatin National Forest, which generally does not require permits for day use activities like mountain biking.
When riding in Custer Gallatin National Forest, always follow Leave No Trace principles. Stay on designated trails, yield to hikers and horses, control your speed, and be prepared for changing weather conditions. Check the forest's official website for any specific area closures or seasonal restrictions.
The Blackmore Trail is generally ridden as an out-and-back route. However, there is an option to connect to the South Cottonwood drainage for a longer, adventurous shuttle ride, transforming it into a point-to-point experience.
Yes, the Blackmore Trail is well-known for its significant 'hike-a-bike' sections, particularly on the ascent. Riders should expect to push their bikes for considerable portions due to the steep grades and technical terrain.
Yes, while primarily following the Blackmore Trail (100%), the route also passes through sections of the Fs 3153 and the Fs 3153D.