Nevada, Nye Co., large playa southeast of the junction of Nevada Highway 16 and U.S. Highway 95 along a dirt road to, and east of, Ash Meadows, sec. 21, T.17S., R.51E.
Arizona, Coconino Co. : along paved road between Page and Kaibito, 2,3 miles south of the south edge of Page and 3 miles east of the main entrance to the Navajo Generating Station
California, San Bernardino Co. San Bernardino Mountains, San Bernardino National Forest, Johnston Grade along California Highway 18, 0,8 mile below the summit northeast of Baldwin Lake
Durango, Sierra Madre Occidental, along the dirt road from Hidalgo del Parral toward El Vergel out of San Francisco del Oro, about 60 miles west of Parral and 18,5 miles west of Ojito
Delta Co. : along Colorado Highway 92, 8,6 miles west of the western edge of Hotchkiss, 0,9 mile east of the Red Mesa turnoff and 3,1 miles west of Lazear, 11,5 miles east of US Highway 50 at Delta
Oregon, Lake Co., along dark, rocky lava slopes north of the North Canal, about 2 miles east of Drews Reservoir, 0,8 mile east of Jess Roberts ranch house, across Drews Creek north of the US Forest Service Road 4017
