Flagstaff ( FLAG-staf) is a city in, and the county seat of, Coconino County in northern Arizona, in the southwestern United States. In 2019, the city's estimated population was 75,038. Flagstaff's combined metropolitan area has an estimated population of 139,097.
Flagstaff lies near the southwestern edge of the Colorado Plateau and within the San Francisco volcanic field, along the weste...
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