U.S.A., Montana, Carbon, Bighorn Basin: along Robertson Draw Road, just N of Wyoming, ca 3 air mi W of Chance Bridge on Clarks Fork Yellowstone River, ca 10.5 air mi SSW of Belfry.
45.0102 -109.1123 NAD 83
45.0102° N, 109.1123° W to 45.0131° N, 109.1132° W; WGS 84, , GPS Reading; T9S R21E S27
1335-1378 meters
4380-4520 ft.
Sandy flats and wash with big sagebrush, clay slopes, and gravelly cobblestone ridgetops.