From Helena head northeast on Montana Highway 280, past Hauser Lake, for the 18 mile drive to York. Turn north at York on FR 4 and drive 8 miles to Nelson on Beaver Creek, which flows along the south edge of the Gates of the Mountains Wilderness. Turn right on Beaver Creek Road 138 for the remaining 5 winding miles to the Refrigerator Canyon trailhead for Trail 259. For river access go about 17 mile north of Helena on I-15. Take the Gates of the Mountains exit and drive 2 miles to the Gates of the Mountains Boat Club on the north end of Upper Holter Lake.