United States, Arizona, Coconino, Coconino National Forest, Garland Prairie Quad., Upper Hull Spring and Tank, 0.4 mi S of junction of USFS Rd 131, along USFS Rd 527. At S edge of Garland Prairie, ca 2 mi NE of Sycamore canyon, 8 mi S of I-40 and 18 mi W of Flagstaff.