There is no motorized access to this cabin. 1.Sourdough Canyon Trailhead: From Bozeman, MT. Drive south on S. 19th Ave. for 5.1 miles to Nash Rd. Turn left (east) onto Nash Rd. Drive 1.7 miles to Sourdough Canyon Road, turn right (south), and drive for 0.9 miles to the Sourdough Canyon Trailhead. This is the recommended winter route. From the Sourdough Canyon Trailhead travel south on Trail 454, at mile 5 just before the bridge you have two options: 1.Before the bridge turn left onto the Mystic Lake Trail 457. Follow this single track trail approximately 2.8 miles to Mystic Lake. The cabin is on the south side of the lake. 2.Cross the bridge and go left at the junction to stay on Trail 454. Travel this old roadbed for another 4 miles to the cabin. 2.Hyalite Canyon: From Bozeman, MT. Drive south on S. 19th Ave. for about 7 miles. Turn left onto Hyalite Canyon Road FS 62. Travel 5.6 miles to the Moser Road FS 6210 on the left (east) side of the road. Travel another 3 miles on FS Road 6210, stay to the left (north) at the junction (which is ÃÂý mile from Hyalite Road FS 62). Look for a gate on the east (right) side of the road. Park to the side of the road. Please do not block the gate. Travel Trail 461 for 3 miles to the junction with Trail 454. Travel this old roadbed for another 4 miles to the cabin. This is the recommended route for horse and pack stock users. 3.New World Gulch Trailhead: From Bozeman, MT. Drive north on N. 19th Ave. for 2.6 miles and merge onto I-90 going east. Follow I-90 east for 7.4 miles and take exit 313 (Moffit Gulch Road/Bear Canyon Rd.). Turn right (south) onto Bozeman Trail Road travelling southwest then turn left (south) onto Bear Canyon Rd. Travel for another 3.5 miles on Bear Canyon Road to the New World Gulch Trailhead which is on the right (south) side of the road. The New World Gulch, Trail 50, is approximately 5.5 miles of steep and rough trail to Mystic Lake Cabin. The first 2.5 miles of trail through State of Montana land is steep with even steeper pitches, closely follows the creek bed, and then climbs to a meadow. The meadow roughly marks the National Forest boundary. At 2.5 miles the trail forks; continue left to Mystic Lake (the right fork heads back to the New World Gulch trailhead via a loop). The trail then climbs slightly to the boundary between New World Gulch and the Bozeman Creek at about 3.7 miles. From the divide the trail drops down to the northwest shoreline of Mystic Lake and meets with the Bozeman Creek Trail 457. The Mystic Lake Cabin is on the southeast side of Mystic Lake. This is a very rugged and rough route. ROAD CLOSURE INFORMATION: (Please refer to the Motor Vehicle Use Map ) Sourdough Canyon/Bozeman Creek Trail 454, Trail 461, and the New World Gulch Trails 50 and 53 are closed to all motorized use. In the winter, Trail 454 is a groomed cross-country ski trail and is closed to all bicycles and wheeled vehicles. In the winter, Moser Road FS 6210 is closed to all wheeled motorized vehicles. Hyalite Canyon Road FS 62 and Moser Road FS 6210 both close to all motorized vehicles the evening of March 31 through May 16.