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.
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.
