AMNH Loc. 503.  Road Canyon Formation (30'23'28"N, 103'8'47"W).  Near top of slope
          3.5 mi (5.8 km) S75'W of Old Word Ranch, 1.15 mi (1.9 km) S37'E of hill 5507, and
          0.65 mi (1.1 km) SW of road fork to Appel Ranch house, Hess Canyon quadrangle.
          (Description from Cooper and Grant, 1972.) Private ranch, permission to collect
          required.