2018 Map of Dewey Flat

About this map

San Carlos Reservoir dominates the northern landscape of this Graham County region, where the Gila River enters from the east near the eponymous Dewey Flat. The settlement of Natches sits on the northern shore of the reservoir, positioned along the historical corridor defined by Coolidge Dam Rd. This 2018 survey illustrates a complex desert hydrology where seasonal drainages like Salt Cr and Hackberry Draw feed into the reservoir's basin. To the south, the terrain becomes increasingly intricate as it rises away from the river, marked by local water sources such as Sherman Spring and deep cuts like Sycamore Gulch and Cottonwood Canyon. The map provides a modern look at the rural infrastructure in the San Carlos Apache Indian Reservation vicinity, detailing numerous local routes including Co Rd 400 and House Road 550 that navigate the high-relief desert landscape.