References
- Barsted, Jan 1988 The Verde River Sheep Bridge and the Sheep Industry in Arizona. Gerald A. Doyle and Associates, P.C. On file at the Kaibab Forest Supervisor’s Office.
- Haskett, Bert 1936 History of the Sheep Industry in Arizona. Arizona Historical Review 7:3–49.
- Olberding, Susan Deaver 2009 Albert F. Potter The Arizona Rancher Who Shaped U.S. Forest Service Grazing Policies. The Journal of Arizona History 50(2):167–182.
- Pinchot, Gifford 1998 Breaking New Ground. Commemorative Edition. Island Press, Washington.
- Pregler, Charles 2012 Summary of BLM and USFS Research: Black Canyon and Beaverhead-Grief Hill Sheep Driveways and Black Canyon National Recreation Trail. On file at the Kaibab Forest Supervisor Office.
- Raish, Carol and Alice McSweeney 2003 Economic, Social and Cultural Aspects of Livestock Ranching on the Española and Canjilon Ranger Districts if the Santa Fe and Carson National Forest. A Pilot Study. U.S.D.A. Rocky Mountain Research Station General Technical Report RMRS-GTR-113. On File at the Española Ranger District of the Santa Fe National Forest.
- Roberts, Paul H. 1963 Hoof Prints on Forest Ranges. The Naylor Company, San Antonio.
- Rowley, William D. 1985 U.S. Forest Service Grazing and Rangelands: A History. Texas A&M University Press, College Station.
- Weigand, Peter, and Acelia García de Weigand 1993 The Dendroglyphs of the San Francisco Peaks, Arizona. On File at the Kaibab National Forest Supervisor Office.