Blue Gap (Navajo: ) is an unincorporated community in Apache County, Arizona, United States. Blue Gap is on the Navajo Nation west of Chinle. The community is in Polacca Wash near State Road 291 in western Apache County.Blue Gap, Arizona, 7.5 Minute Topographic Quadrangle, USGS, 1972 Blue Gap has a post office with ZIP code 86520.ZIP Code Lookup
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