Central Montana District Office
Lewistown Field Office
Lewistown, MT 59457
Collar Peak Trailhead is about 20 miles from Main Street in Lewistown, Montana. Take US Highway 191 north from Lewistown 10 miles out, turn right onto Maiden Gulch Road. Stay on Maiden Road for about 13.5 miles toward Judith Peak. The trailhead is on the right hand side of the road. Look for the BLM sign marking the trail.