St. Johns, AZ (CDP)

St. Johns is Apache County’s seat, a White Mountains city on U.S. 180 near the Little Colorado River. The town’s history follows the crossing: Navajo and Spanish names preceded the later county-seat community, and the Apache County Historical Society Museum keeps the regional record in a local collection. Nearby Placerias Quarry is tied to fossil discoveries from 1930, while the city’s National Register sites extend the story into buildings and archaeological places. St. Johns is an eastern Arizona county seat with a river crossing, a museum, and fossils beneath the high-desert map.