2021 Map of Armenta Well

About this map

Organ Pipe Cactus National Monument dominates the arid landscape of this Pima County quadrangle, where the expansive Valley of the Ajo meets the uplift of the Gunsight Hills. The terrain is defined by a network of seasonal drainage patterns, most notably the braided courses of Gunsight Wash, Cuerda de Lena, and Kuakatch Wash. These dry washes indicate the essential role of ephemeral water in shaping the Sonoran Desert geography. Human traces in this protected wilderness are sparse, primarily represented by administrative boundaries and the Grass Canyon Access Trl skirting the eastern edge. The map provides a detailed view of the township and range survey system, documenting the precise subdivisions of public land throughout the monument and adjacent desert floor.