United States, Arizona, Coconino, Coconino National Forest, Stoneman Lake Quad., Potato Patch Tank. 0.2 miles east of junction U.S.F.S. Rd 127A, along an unmarked U.S.F.S. Rd. In Potato Patch/Roundup Park at northern foot of Fain Mountain Ca. 3 miles north of Stoneman Lake and 25 miles miles south of Flagstaff.