2018 Map of San Juan Spring

About this map

Gu Chuapo sits at the base of the high desert peaks in Pima County, serving as a primary point of reference in this landscape of dramatic elevation changes and ephemeral water systems. The terrain is defined by the intersection of the Quinlan Mountains to the north and the Baboquivari Mountains to the south, where steep ridges give way to a network of drainage channels. Water is the primary architect of the local geography, visible in the winding courses of San Juan Wash, Ali Molina Wash, and Sells Wash, which carve through the arid floor. Historical landmarks like San Juan Spring emphasize the importance of dependable water sources in this region. This survey captures the topographical transition from the rugged San Juan Canyon to the flatter valley floor, crisscrossed by 86 and 386 as they navigate the desert floor.