Kupk Hills

Pima Association of Governments, 1994, Water quality: State of the region report: Tucson, Ariz., [177] p.

Heindl, L.A., and Cosner, O.J., 1961, Hydrologic data and drillers' logs, Papago Indian Reservation, Arizona, with a section on Chemical quality of the water, by L. R. Kister: Arizona State Land Department Water Resources Report no. 9, 116 p., 1 sheet, scale 1:270,000.

Heindl, L.A., Cosner, O.J., Page, H.G., Armstrong, C.A., and Kister, L.R., 1962, Summary of occurrence of ground water on the Papago Indian Reservation, Arizona: U.S. Geological Survey Hydrologic Investigations Atlas HA-0055, scale 1:250,000.

Hollett, K.J., 1981, Maps showing ground-water conditions in the San Simon Wash area, Papago Indian Reservation, Arizona - 1979: U.S. Geological Survey Water-Resources Investigations Open-File Report 81-0530, 2 sheets, scale 1:125,000.

Tellman, Barbara, Glass, Clint, Wallace, John, and Fuller, J.E., 2000, An overview of Pima County's watersheds and watercourses: Pima County, Ariz., Sonoran Desert Conservation Plan Report, 215 p.

Harris, R.C., 2002, Giant desiccation cracks in the southwestern part of the Tohono O'Odham nation, Pima County, Arizona: Arizona Geological Survey Open-File Report 02-04, 46p.

Bouse, R.M., Ruiz, Joaquin, Titley, S.R., Tosdal, R.M., and Wooden, J.L., 1999, Lead isotope compositions of Late Cretaceous and early Tertiary igneous rocks and sulfide minerals in Arizona: Implications for the sources of plutons and metals in porphyry copper deposits: Economic Geology, v. 94, no. 2, p. 211-244.

Conley, J.N., Koester, E.A., and Rauzi, S.L., 1995, Well location map, Pima and Santa Cruz Co., Arizona - wells posted to January 1995: Arizona Geological Survey Oil and Gas Publication OG-9, 1 sheet, scale 1:500,000.

U.S. Geological Survey, 1982, Mineral resource potential and related studies of the Papago Indian Reservation, southern Arizona: U.S. Geological Survey unpublished report [selected portions available for inspection at Arizona Geological Survey, 416 W. Congress, Suite 100, Tucson, Ariz.].

Beikman, H.M., Haxel, G.B., and Miller, R.J., 1995, Geologic map of the Tohono O'odham Indian Reservation, southern Arizona: U.S. Geological Survey Miscellaneous Investigations Series Map I-2017, 2 sheets, scale 1:125,000.