Barmore, R.L., 1980, Soil survey of Yuma-Wellton area, parts of Yuma County, Arizona, and Imperial County, California: U.S. Department of Agriculture, Soil Conservation Service and University of Arizona, Agricultural Experiment Station, and California Agricultural Experiment Station, 104 p., 100 sheets.
Soil Survey
Keywords Group
Soil
Soil survey of Yuma-Wellton area, parts of Yuma County, Arizona, and Imperial County, California
Earth fissures in the Stewart area of the Willcox Basin, Cochise County, Arizona
Anderson, S.R., 1978, Earth fissures in the Stewart area of the Willcox Basin, Cochise County, Arizona: Tucson, University of Arizona, M.S. thesis, 72 p, 1 sheet, 1:62,500.
Soil survey, eastern Maricopa and northern Pinal Counties area, Arizona
Adams, E.D., 1974, Soil survey, eastern Maricopa and northern Pinal Counties area, Arizona: U.S. Department of Agriculture, Soil Conservation Service and University of Arizona, Agricultural Experiment Station, 61 p., 44 sheets, scale 1:24,000.
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.
