Richmond, D.L., 1976, Soil survey of the Willcox area, Arizona - parts of Cochise and Graham Counties: U.S. Department of Agriculture, Soil Conservation Service, 76 p., 48 sheets, scale 1:20,000.
Soil Survey
Keywords Group
Soil survey of the Willcox area, Arizona - parts of Cochise and Graham Counties
General soil map, Graham County, Arizona
Richmond, D.L., 1973, General soil map, Graham County, Arizona: U.S. Department of Agriculture, Soil Conservation Service, 74 p., 1 sheet, scale 1:500,000.
General soil map, Greenlee County, Arizona
Richmond, D.L., 1973, General soil map, Greenlee County, Arizona: U.S. Department of Agriculture, Soil Conservation Service, 49 p., 1 sheet, scale 1:500,000.
General soil map, Cochise County, Arizona
Richmond, D.L., 1971, General soil map, Cochise County, Arizona: U.S. Department of Agriculture, Soil Conservation Service, 52 p., 1 sheet, scale 1:500,000.
Soil survey of Santa Cruz and parts of Cochise and Pima Counties, Arizona
Richardson, M.L., Clemmons, S.D., and Walker, J.C., 1979, Soil survey of Santa Cruz and parts of Cochise and Pima Counties, Arizona: U.S. Department of Agriculture, Soil Conservation Service, 105 p., 124 sheets, scale 1:20,000.
Report and interpretations for the general soil map, Pima County, Arizona
Richardson, M.L., and Miller, M.L., 1974, Report and interpretations for the general soil map, Pima County, Arizona: U.S. Department of Agriculture, Soil Conservation Service, 49 p., 1 sheet, scale 1:500,000.
Report and interpretations for the general soil map, Navajo County, Arizona, revised December 1972
Richardson, M.L., and Miller, M.L., 1972, Report and interpretations for the general soil map, Navajo County, Arizona, revised December 1972: U.S. Department of Agriculture, Soil Conservation Service, 43 p., 1 sheet, scale 1:500,000.
General soil map, Santa Cruz County, Arizona, revised July 1971
Richardson, M.L., 1971, General soil map, Santa Cruz County, Arizona, revised July 1971: U.S. Department of Agriculture, Soil Conservation Service, 39 p., 1 sheet, scale 1:250,000 [additional pages added April 1972].
General soil map, lower Pantano Wash area, Pima County, Arizona - A special report with selected engineering interpretations
Richardson, M.L., 1972, General soil map, lower Pantano Wash area, Pima County, Arizona - A special report with selected engineering interpretations: U.S. Department of Agriculture, Soil Conservation Service, 28 p., 1 sheet, scale 1:31,380.
Clay mineral composition of vertisols of north-central Arizona
Rahoma, E.T., 1974, Clay mineral composition of vertisols of north-central Arizona: Tucson, University of Arizona, M.S. thesis.