2021 Map of Malpais Hill

About this map

Malpais Hill rises from the desert floor of southern Maricopa County, serving as a prominent volcanic landmark within a sparse, arid landscape. This 2021 survey illustrates the stark topographical contrast between the broad alluvial plains and the complex, elevated terrain of the Crater Range to the south. The drainage patterns of the region are defined by ephemeral watercourses such as Midway Wash, which cuts across the northeastern portion of the quadrangle. The map serves as a clear record of the Public Land Survey System grid, detailing the intersection of T8S R8W, T8S R7W, T9S R8W, and T9S R7W. This area is characterized by its open range and significant relief, offering a precise look at the landforms that define this part of the Arizona desert near the Gila River valley.