Hack Canyon

Billingsley, G.H., 1989, Mining activity in the Grand Canyon area, Arizona, Elston, D.P., Billingsley, G.H., and Young, R.A., eds., Geology of Grand Canyon, northern Arizona (with Colorado River guides): American Geophysical Union, International Geological Congress, 28th, Field Trip Guidebook T115/315, p. 224-227.

Billingsley, G.H., 1976, Prospectors' proving ground, in History of mining in Grand Canyon region: Journal of Arizona History, v. 17, no. 1, p. 69-88.

Baker, A.A., and Reeside, J.B., Jr., 1929, Correlation of the Permian of southern Utah, northern Arizona, northwestern New Mexico, and southwestern Colorado: American Association of Petroleum Geologists Bulletin, v. 13, no. 11, p. 1413-1448.

Elevatorski, E.A., 1978, Uranium deposits of Arizona - California - Nevada: Dana Point, Calif., Minobras, 125 p.

Agenbroad, L.D., and Mead, J.I., 1987, Late Pleistocene alluvium and megafauna dung deposits of the central Colorado Plateau, in Davis, G.H., and VandenDolder, E.M., eds., Geologic diversity of Arizona and its margins: Excursions to choice areas; Geological Society of America, Annual Meeting, 100th, Phoenix, Ariz., October 26-29, 1987, Field-trip guidebook: Arizona Bureau of Geology and Mineral Technology Special Paper 5, p. 68-84.

Adler, H.H., 1974, Concepts of uranium-ore formation in reducing environments in sandstones and other sediments [IAEA-SM-183/43], in Formation of uranium ore deposits, Proceedings of a symposium on the Formation of uranium ore deposits: Vienna, International Atomic Energy Agency, Proceedings Series, STI/PUB/374, p. 141-168.