2014 Map of Tillotson Peak

About this map

Organ Pipe Cactus National Monument dominates this portion of the Sonoran Desert, preserving a landscape defined by dramatic volcanic rises and ephemeral drainage systems. The topography is anchored by Tillotson Peak and the high ridges of the Puerto Blanco Mountains in the south, where Pinkley Peak stands as a prominent landmark. These peaks overlook the broad Valley of the Ajo, a wide basin where the network of Alamo Wash and Cherioni Wash channel seasonal runoff through the arid floor. This 2014 survey illustrates the modern transportation corridor of Az-85 cutting north-south across the desert, providing access to the remote interior via routes like Puerto Blanco Dr. The map provides a clear look at the intersection of protected wilderness boundaries and the natural watercourses that dictate the movement of life and travelers in this borderland environment.