2012 Map of Porcupine Wash

About this map

Pinkham Well and the nearby Pinkham Spring serve as the primary landmarks in this arid Riverside County landscape, where water and transit have historically dictated human movement. The terrain is defined by the winding course of Porcupine Wash, which flows northeast across the center of the sheet. Transportation is limited to a few specific corridors, including the established Pinto Basin Rd and the more primitive Black Eagle Mine Rd, which hints at the region's mineral prospecting history. The vast network of seasonal drainage, most notably Smoke Tree Wash, illustrates the flash-flood character of the local geography. This 2012 survey provides a clear view of the sparse infrastructure and natural water sources that have remained essential to desert navigation for generations.