West Prong Waterman Wash is a tributary steam or arroyo of Waterman Wash, in Maricopa County, Arizona.
Its mouth is at its confluence with Waterman Wash at an elevation of 1,132 feet / 345 meters.
Is source is at 33°00′25″N 112°22′14″W / 33.00694°N 112.37056°W / 33.00694; -112.37056 at an elevation of 1,750 feet in the Maricopa Mountains.
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