places to 1000 ft above the valley floor. (Although the Comb Wash ends at the San Juan River, the Comb Ridge continues south for about another 40 mi into northern Arizona.)

On the western edge of Comb Wash is a series of canyons draining Cedar Mesa. To the north is Arch Canyon, which has Texas Canyon as an upper tributary. In the central section are Mule Canyon, Dry Wash, and the combined outlet of Fish and Owl canyons. To the south are McCloyd's Canyon (containing the