Morgan, Paul, and Lucchitta, Ivo, 1995, A tale of two elevations: The southwestern Colorado Plateau [abs.]: Eos, Transactions, American Geophysical Union, v. 76, no. 46, p. F604.
Nealey, L.D., Unruh, D.M., Ludwig, K.R., and Maldonado, Florian, 1995, Three-dimensional analysis of Sr-Nd-Pb isotopic data for upper Cenozoic volcanic rocks, Colorado Platueau-Basin and Range transition zone [abs.]: Eos, Transactions, American Geophysical Union, v. 76, no. 46, p. F684.
Arizona Bureau of Mines, 1962, Map of outcrops of Tertiary and Quaternary igneous rocks in Arizona: Arizona Bureau of Mines, 1 sheet, scale 1:1,000,000.
Dumitru, T.A.,, Duddy, I.R., and Green, P.F., 1994, Mesozoic-Cenozoic burial, uplift, and erosion history of the west-central Colorado Plateau: Geology, v. 22, no. 6, p. 499-502.
Christiansen, E.H., Sheridan, M.F., and Burt, D.M., 1986, The geology and geochemistry of Cenozoic topaz rhyolites from the western United States: Geological Society of America Special Paper 205, 82 p.
Morgan, P., and Swanberg, C.A., 1985, On the Cenozoic uplift and tectonic stability of the Colorado Plateau: Journal of Geodynamics, v. 3, no. 1/2, p. 39-63.
Beghoul, Noureddine, and Barazangi, Muawia, 1989, Mapping high Pn velocity beneath the Colorado Plateau constrains uplift models: Journal of Geophysical Research, v. 94, no. B6, p. 7083-7104.
Huntoon, P.W., 1990, Phanerozoic structural geology of the Grand Canyon, Chap. 14, in Beus, S.S., and Morales, Michael, eds., Grand Canyon geology: New York, Oxford University Press, p. 261-309.
Morales, Michael, 1990, Mesozoic and Cenozoic strata of the Colorado Plateau near the Grand Canyon, Chap. 13, in Beus, S.S., and Morales, Michael, eds., Grand Canyon geology: New York, Oxford University Press, p. 247-260.
Axen, G.J., Wernicke, B.P., Skelly, M.F., and Taylor, W.J., 1990, Mesozoic and Cenozoic tectonics of the Sevier thrust belt in the Virgin River Valley area, southern Nevada, Chap. 4, in Wernicke, B.P., ed., Basin and Range extensional tectonics near the latitude of Las Vegas, Nevada: Geological Society of America Memoir 176, p. 77-97.