From Durango, drive approximately 27 miles north on U.S. 550 to reach the Purgatory/Durango Mountain Resort. On the opposite side of the road from the resort, turn right into Tacoma Village. Drive 0.3 mile to reach the trailhead parking area, on the left next to a small lake. The Purgatory Flats trail starts a short distance back down this road, on the east side.