59
riders
9
rides
Mountain biking in Hyalite-Porcupine-Buffalo Horn Wilderness Study Area offers diverse terrain across 155,000 acres of the northern Gallatin Range. The region is characterized by glaciated landscapes, deep valleys, cirque basins, and jagged peaks, with elevations ranging from 5,500 to over 10,000 feet. Riders will encounter varied ecosystems, transitioning from grasslands to dense Douglas fir forests, providing a dynamic backdrop for mountain bike trails. This area is also a vital wildlife corridor and an important water source.
Last updated: May 12, 2026
1
riders
17.8km
02:38
1,070m
1,070m
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…
9.62km
00:50
140m
140m
This easy 6.0-mile mountain biking loop in Custer-Gallatin National Forest takes you to Maxey Cabin, gaining 456 feet.

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7.01km
00:49
250m
250m
An easy 4.4-mile mountain biking route in Custer Gallatin National Forest, leading to the scenic Emerald Lake.
7.24km
00:41
140m
140m
Enjoy an easy 4.5-mile mountain bike loop through Custer Gallatin National Forest, featuring views of Hyalite Reservoir and Maxey Cabin.
12.6km
01:35
550m
550m
Tackle the difficult Rat Lake Trail mountain biking route, a 7.8-mile ride with 1819 feet of elevation gain in Custer Gallatin National Fore
32
riders
23.0km
02:11
550m
550m
Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.
18
riders
42.9km
03:41
990m
990m
Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary.
8
riders
35.5km
03:09
850m
850m
Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.
Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.
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Popular around Hyalite-Porcupine-Buffalo Horn Wilderness Study Area
Great nontechnical hike to the summit of one of Bozeman's iconic southern peaks. A few stream crossings for filtration if you want to go light. Some steeper grades just up from the lake, but mostly very manageable grades, gorgeous views! Mountain goats were seen as well. Highly recommended.
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Ousel Falls Trail in Big Sky offers a short, scenic hike along the South and West Forks of the Gallatin River, crossing three bridges before reaching the stunning waterfall. At the trail split, hikers can choose from four paths: the South Fork Overlook, the top of the falls via a natural footpath, the base of the falls with a picnic area, or the rocky Ousel Falls Overlook. This popular trail is best hiked between May and October, and dogs are welcome. Do note that roads to the trailhead may be seasonally closed.
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Easily accessible and beautiful Crescent Lake is a great spot to ride if you're limited on time.
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The final stretch to the summit can be a slog and may end up being more of a hike than a bike, however, the views more than make up for the effort. Also, the fire lookout at the summit is available for overnights so check recreation.gov if you plan to do some bikepacking.
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Chestnut Mountain tops out at 7,627 feet. It has great views of Mount Ellis and other peaks in Custer Gallatin National Forest, and you can sometimes even see down to Mystic Lake. On the other side of the highway, you have open views of the Bridger Peaks and Crazy Mountains.
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Hyalite Reservoir is a large artificial lake that affords opportunities for day-use hiking, easy strolls, or the perfect launching point for more aggressive, big-mountain singletrack riding. Even if a bit busy, plenty of parking is available.
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Maxey Cabin stands just off Hyalite Canyon Trail and within a short walk or ride of Hyalite Reservoir. It sleeps up to 4 in the winter, and two bunks are available in summer in a second structure. Information and reservations can be found through the Forest Service website.
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Rat Lake sits at just over 6,500 feet and can be linked with several hiking, running, or mtb routes in this area. Be sure to check on local fishing regulations if you're interested in angling in this popular spot.
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There are 10 mountain bike trails listed in the Hyalite-Porcupine-Buffalo Horn Wilderness Study Area on komoot, offering a range of experiences from easy to difficult.
The best time for mountain biking is generally from June 16 to March 31, as many trails are seasonally open during this period. Trails are typically closed from April 1 to June 15 to protect the trail resource during wet conditions and wildlife activity. Always check local conditions before you go.
Yes, there are several easier options. For instance, the Crescent Lake & Maxey Cabin loop is an easy 6.0-mile trail. Another good choice is the Hidden Lakes Trail, which is 4.3 miles long and also rated as easy.
The Hyalite-Porcupine-Buffalo Horn Wilderness Study Area features diverse terrain, transitioning from grasslands to dense Douglas fir forests. You'll encounter glaciated landscapes, deep valleys, cirque basins, and jagged peaks with significant elevation changes. Trails can range from smooth paths to challenging climbs over rugged ground.
Yes, several trails offer loop configurations. The Crescent Lake & Maxey Cabin loop is a 6.0-mile easy trail. For a longer, more challenging option, consider the Chestnut Mountain loop from Mystic Heights, which spans over 26 miles and is rated difficult.
The area is known for its dramatic glaciated landscape. You can expect stunning views of mountain peaks like Mount Chisholm and Hyalite Peak. Popular destinations include beautiful lakes such as Emerald Lake, Heather Lake, Golden Trout Lake, and Crater Lake, often accompanied by streams and waterfalls. The region also features diverse ecosystems and is home to the historic Gallatin Petrified Forest.
The Hyalite-Porcupine-Buffalo Horn WSA is a vital wildlife corridor, home to elk, moose, mountain goats, bighorn sheep, grizzly bears, black bears, wolverines, and pikas. It's crucial to be bear aware and carry bear spray. Always stay on designated trails to minimize disturbance to wildlife and their habitats.
Yes, certain trails have seasonal closures. Trails like Hidden Lake Divide #66, Storm Castle #185, Porcupine #199, Porcupine Creek #34, and Buffalo Horn #1 are closed from April 1 to June 15. Additionally, a portion of the Hyalite Trail (#434) has specific bicycle closures on Fridays and Saturdays from July 16 to September 4, and bicycles are prohibited year-long south of its junction with Storm Castle Trail #185. Always check current regulations before heading out.
Access to the Hyalite-Porcupine-Buffalo Horn Wilderness Study Area is generally well-established, with trailheads often having designated parking areas. Specific parking information can usually be found on individual trail pages or local forest service websites. It's advisable to arrive early during peak seasons.
The trails in Hyalite-Porcupine-Buffalo Horn Wilderness Study Area are highly rated by the komoot community, with an average score of 4.0 stars. Reviewers often praise the diverse terrain, from forested slopes to high mountain peaks, and the challenging yet rewarding climbs that offer spectacular views of the glaciated valleys.
Absolutely. For advanced riders seeking a challenge, the Blackmore Trail is an 11.1-mile difficult route with significant elevation gain through forested slopes. Another demanding option is the Rat Lake Trail, a 7.8-mile difficult trail with substantial climbing.
While the region is generally dog-friendly, specific regulations may apply within the Wilderness Study Area and on certain trails. It's always best to check the current rules for each trail and ensure your dog is under control, especially given the presence of diverse wildlife, including bears. Leash laws are often in effect.


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