2011 Map of Malpais Hill

About this map

Malpais Hill stands as the central landmark in this Maricopa County desert landscape, where the arid terrain is defined by a complex network of seasonal drainage patterns. The drainage system is dominated by the prominent Midway Wash, which cuts across the upper half of the quadrangle. These features are characteristic of the Sonoran Desert environment in Arizona, where water movement is ephemeral but leaves a permanent mark on the land through deeply carved arroyos. This 2011 survey illustrates the intersection of ancient geological formations and modern mapping precision, revealing the natural hydrology of the area before any significant human development altered the water's course toward the lower basins.