2023 Map of Sulphur Pass

About this map

The San Andres Mountains dominate this high-desert landscape in Sierra County, where the topography transitions from the dramatic peaks of Big Mountain and Pilot Knob into the broad expanse of the White Sands Missile Range. The area is defined by its seasonal water sources and deep drainage systems, including the complex networks of Domijohn Canyon and Buckhorn Canyon. These landmarks were critical waypoints for early travel through the arid Chihuahuan Desert, where the availability of Holcomb Spring, Upper Cottonwood Spring, and Horse Camp Spring dictated the movement of livestock and people. The proximity of Sulphur Pass and Sulphur Flats indicates the chemical character of the local geography, while the limited infrastructure of Co RD a021 highlights the isolation of this ranching and military corridor.