U.S. Bureau of Reclamation and U.S. Dept. of Agriculture, 1973, Arability map of the Phoenix area, Arizona: U.S. Geological Survey Miscellaneous Investigations Series Map I-845-E, 1 sheet, scale 1:250,000.
U.S. Bureau of Reclamation and U.S. Dept. of Agriculture, 1973, Arability map of the Phoenix area, Arizona: U.S. Geological Survey Miscellaneous Investigations Series Map I-845-E, 1 sheet, scale 1:250,000.
Land-use Planning, Soil Survey,