Chestnut Mountain Trail

User Rating 
Average: 3 (1 vote)
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This trail climbs 2,200 feet in 4.6 miles, past the spectacular Frog Rock pinnacles, to the ridge of Chestnut Mountain. After about a mile, a short spur trail traverses west, providing climbing access and a spectacular hike or bike ride to the base of Frog Rock.

Directions: From Bozeman, drive east on I-90 toward Bozeman Pass. At the Trail Creek exit, turn right and bend to the east on Trail Creek Rd. Trailhead parking is on the south side of the road, roughly 200 yards from the interstate exit.

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Trail Info

4.6 miles one way
Elevation Gain
2200 feet
3.5 hours


No votes yet
June 21, 2012 - 8:09am by: Greg Beardslee
Please ride Chestnut Mt trail with respect for others. Remember that it has a high frequency of hikers and equestrians on it as well as bike riders.
Average: 3 (1 vote)
June 4, 2013 - 3:05pm by: Mike England
Mike England's picture
This is a dry trail (maybe not now) and pretty steep, good hike but a grunt of a mountain bike. Leads up to a ridge with great views; can also access Frog Rock for some climbing.
No votes yet
June 10, 2013 - 12:24pm by: Maggie Slepian
Maggie Slepian's picture
A pretty steady incline, but the terrain stays the same (seems like you could fit a Jeep on the road) so it's not the most interesting hike. I assume it would be better on a mountain bike.
Average: 4 (1 vote)
August 20, 2014 - 4:04pm by: Morgan
Lots of flowers in the Spring and beautiful views at the top. A good workout for the mediocre hiker.
Average: 3 (1 vote)
July 3, 2015 - 12:37pm by: Caroline Miller
Caroline Miller's picture
A great trail for a multi-sport day! If I only have an afternoon it's a fun (strenuous) bike ride to some decent sport climbing. The rock is almost always less crowded than the walls on the other side of the highway, plus you get the adrenaline rush of riding out.
Average: 5 (1 vote)
July 5, 2015 - 8:22pm by: Sean Cozart
Great place for anyone who wants take an good hike, birdwatch and etc. The trail is not too hard but it isn't easy. I had a great time.

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