Chestnut Mountain Crag Rock Climbing

Do not take the actual Chestnut Mountain trail. Instead, I-90 to trail creek exit (Bozeman pass and Frog Rock access). Follow Trail Creek road to Goose Creek road, take this to a parking lot. Hike the road for the better part of a mile to an intersection. Take the right fork, then cut onto a single track to your left which will lead you uphill. Follow the beaten path up past a burn area into an open meadow, where you can then aim uphill for the ridge. Once gaining the ridge follow an ATV track north for a ways until you can spy the rocks peeking up to your left. You are approaching from above the crag rather than below, so don't be surprised if it takes some searching!

ALTERNATIVELY take the Chestnut Mountain trail as per the Frog Rock approach, and follow signs to the Chestnut mountain summit, then follow the ridge to the south. This is a much longer approach but perhaps far less convoluted.

(These directions are based on my faint remembrance from last year's visit. I will hash out in more detail upon an upcoming visit)

If in doubt follow the excellent directions in the Dockins and Kalakay guide.