1
riders
00:57
8.24km
270m
Mountain biking
Mountain bike the moderate 5.1-mile Fairy Lake loop in Custer-Gallatin National Forest, featuring alpine lake views and the Bridger Range.
Last updated: February 26, 2026
Tips
Your route passes through a protected area
Please check local regulations for:
Waypoints
Start point
Parking
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4.22 km
Highlight • Lake
Tip by
8.24 km
End point
Parking
Way Types & Surfaces
Way Types
4.10 km
3.47 km
443 m
213 m
Surfaces
3.76 km
3.47 km
996 m
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Elevation
Highest point (2,320 m)
Lowest point (2,070 m)
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Weather
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Today
Monday 1 June
11°C
2°C
53 %
Additional weather tips
Max wind speed: 15.0 km/h
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This route was planned by komoot.
Parking is available at the Fairy Lake trailhead. Be aware that the road leading to the trailhead (Fairy Lake Road) is a rough dirt road with potholes and some steep sections, so a high-clearance vehicle is advisable.
Yes, dogs are generally allowed on the trail. However, as this area is within the Custer Gallatin National Forest, it's always best to check current regulations regarding leash requirements and waste disposal. Remember to be respectful of other trail users and wildlife.
The best time for mountain biking the Fairy Lake loop is typically between June and October. During winter months, the road leading to Fairy Lake can become impassable due to snow.
Generally, no specific permits or fees are required for day-use mountain biking on the Fairy Lake loop within the Custer Gallatin National Forest. However, it's always a good idea to check the official USDA Forest Service website for any updated regulations or alerts before your visit.
While sections of the Fairy Lake loop are considered easy, the overall route is rated as 'moderate' for mountain biking. It requires good fitness and some advanced riding skills due to varied terrain, including rocky sections and ruts. A shorter, 1.2-mile loop directly around Fairy Lake is easier with minimal elevation gain.
The terrain varies. The singletrack directly around Fairy Lake is generally smooth. However, if approaching via the Fairy Creek Trail, you'll encounter a mix of wide, smooth paths, curvier sections through meadows, and over wooden bridges. The northern portion of the Fairy Creek Trail can become rockier with small embedded and loose rocks, ruts, and occasional mud.
The primary highlight is the stunning Fairy Lake itself, a beautiful alpine lake nestled at the base of Sacagawea Peak. The Fairy Creek Trail also offers wide-open vistas of the Bridger Range. You'll experience rich natural beauty, including forested areas, open meadows, and seasonal wildflowers.
The area is known grizzly bear territory, so it's crucial to be bear-aware and carry bear spray. You may also encounter other wildlife common to the Custer Gallatin National Forest.
Yes, the route utilizes sections of several official trails, including the Fairy Creek Trail, Fairy Lakeshore Trail, Fairy Lake Access Trail, and Sacagawea Pass. This connectivity allows for various route options and access to other prominent features of the Bridger Range.
When mountain biking in Custer Gallatin National Forest, always follow Leave No Trace principles. Be aware that the area is multi-use, so you may encounter hikers, runners, and horseback riders. Yield to others, especially horses. Always check for current fire restrictions or area closures before heading out.
No, the road leading to Fairy Lake is typically impassable during winter months due to snow, making the loop inaccessible for mountain biking during that season.