Miller, M.L., and James, M.S., 1972, General soil map, Coconino County, Arizona, May 1972, text revised and interpretations added by M.L. Richardson: U.S. Department of Agriculture, Soil Conservation Service, 52 p., 1 sheet, scale 1:633,600.
Miller, M.L., and James, M.S., 1972, General soil map, Coconino County, Arizona, May 1972, text revised and interpretations added by M.L. Richardson: U.S. Department of Agriculture, Soil Conservation Service, 52 p., 1 sheet, scale 1:633,600.
Soil Survey,