Hollett, K.J., 1981, Maps showing ground-water conditions in the San Simon Wash area, Papago Indian Reservation, Arizona - 1979: U.S. Geological Survey Water-Resources Investigations Open-File Report 81-0530, 2 sheets, scale 1:125,000.
Hollett, K.J., 1981, Maps showing ground-water conditions in the San Simon Wash area, Papago Indian Reservation, Arizona - 1979: U.S. Geological Survey Water-Resources Investigations Open-File Report 81-0530, 2 sheets, scale 1:125,000.
Groundwater,