Richard, S.M., Reynolds, S.J., Spencer, J.E., and Pearthree, P.A., comps., 2000, Geologic Map of Arizona: Arizona Geological Survey Map M-35, 1 sheet, scale 1:1,000,000.
Willcox Playa
Geologic Map of Arizona
Arizona has salt!
Rauzi, S.L., 2002, Arizona has salt!: Arizona Geological Survey, Circular 30, 36 p.
Character of the ground-water resources of Arizona
Catlin, C.N., 1926, Character of the ground-water resources of Arizona: Tucson, University of Arizona, College of Agriculture, Agricultural Experiment Station, Bulletin no. 114, p. 173-293.
The chemical composition of representative Arizona waters
Smith, H.V., Caster, A.B., Fuller, W.H., Breazeale, E.L., and Draper, George, 1949, The chemical composition of representative Arizona waters: Tucson, University of Arizona, College of Agriculture, Agricultural Experiment Station, Bulletin 225, 76 p.
Santa Cruz-San Pedro River basin, Arizona: Resource inventory
Soil Conservation Service, Economic Research Service, Forest Service, and Arizona Water Commission, 1977, Santa Cruz-San Pedro River basin, Arizona: Resource inventory: U.S. Department of Agriculture Soil Conservation Service, [350] p.
Water resources: Part II of Mineral and water resources of Arizona
Ligner, J.J., White, N.D., Kister, L.R., and Moss, M.E., 1969, Water resources: Part II of Mineral and water resources of Arizona: Arizona Bureau of Mines Bulletin 180, p. 471-580.
Annual summary of ground-water conditions in Arizona, Spring 1981 to Spring 1982
U.S. Geological Survey, 1983, Annual summary of ground-water conditions in Arizona, Spring 1981 to Spring 1982: U.S. Geological Survey Open-File Report 82-1009, 2 sheets, scales 1:1,000,000 and 1:3,200,000.
Selected geologic and hydrologic characteristics of the Basin and Range Province, western United States - Pleistocene lakes and marshes
Williams, T.R., and Bedinger, M.S., 1983, Selected geologic and hydrologic characteristics of the Basin and Range Province, western United States - Pleistocene lakes and marshes: U.S. Geological Survey Open-File Report 83-0751, [21] p., 1 sheet, scale 1:2,500,000.
Annual summary of ground-water conditions in Arizona, Spring 1982 to Spring 1983
U.S. Geological Survey, 1984, Annual summary of ground-water conditions in Arizona, Spring 1982 to Spring 1983: U.S. Geological Survey Open-File Report 84-0428, 2 sheets, scales 1:1,000,000 and 1:3,300,000.
Annual summary of ground-water conditions in Arizona, Spring 1984 to Spring 1985
U.S. Geological Survey, 1986, Annual summary of ground-water conditions in Arizona, Spring 1984 to Spring 1985: U.S. Geological Survey Open-File Report 86-0422W, 2 sheets, scales 1:1,000,000 and 1:3,300,000.