Berry, A.L., Dalrymple, G.B., Lanphere, M.A., and Von Essen, J.C., 1976, Summary of miscellaneous potassium-argon age measurements, U.S. Geological Survey, Menlo Park, California, for the years 1972-74: U.S. Geological Survey Circular 727, 13 p.
Tortilla Mts.
Placename Counties
PN
Placename Label
Tortilla Mts.
Summary of miscellaneous potassium-argon age measurements, U.S. Geological Survey, Menlo Park, California, for the years 1972-74
Chronology of intrusion and ore deposition at Ray, Arizona: Part I, K-Ar ages
Banks, N.G., Cornwall, H.R., Silberman, M.L., Creasey, S.C., and Marvin, R.F., 1972, Chronology of intrusion and ore deposition at Ray, Arizona: Part I, K-Ar ages: Economic Geology, v. 67, no. 7, p. 864-878.
Uranium deposits of Arizona - California - Nevada
Elevatorski, E.A., 1978, Uranium deposits of Arizona - California - Nevada: Dana Point, Calif., Minobras, 125 p.
General soil map, Pinal County, Arizona - March 1971 (revised April 1972)
Adams, E.D., 1972, General soil map, Pinal County, Arizona - March 1971 (revised April 1972): U.S. Department of Agriculture, Soil Conservation Service, 45 p., 1 sheet, scale 1:500,000.