1. Geologic map of Pipe Spring National Monument and the western Kaibab-Paiute Indian Reservation, Mohave County, Arizona Author/Creator: Billingsley, George H. Publication/Creation: [Reston, Va.] : U.S. Dept. of the Interior, U.S. Geological Survey, 2004 Resource Type: Map Access & Availability: Loading
2. Geologic map of the lower Grand Wash Cliffs and vicinity, Mohave County, northwestern Arizona Publication/Creation: Flagstaff, Ariz. : U.S. Geological Survey, 2004 Resource Type: Map Access & Availability: Loading
3. Geologic map of upper Clayhole Valley and vicinity, Mohave County, northwestern Arizona Author/Creator: Billingsley, George H. Publication/Creation: Flagstaff, Ariz. : U.S. Geological Survey, 2003 Resource Type: Map Edition: Version 1.0. Access & Availability: Loading