U.S. Geological Survey, 1979, Land use and land cover, 1972-73, Ajo, Arizona: U.S. Geological Survey Land Use Series Map L-39, 1 sheet, scale 1:250,000.
U.S. Geological Survey, 1979, Land use and land cover, 1972-73, Ajo, Arizona: U.S. Geological Survey Land Use Series Map L-39, 1 sheet, scale 1:250,000.
Land-use Planning,