2012 Map of Thumb Peak

About this map

Thumb Peak rises as a central landmark in this desert region of Imperial County, situated between the Mule Mountains to the north and the Palo Verde Mountains to the south. The landscape is defined by vast alluvial fan systems and arid drainage patterns typical of the Colorado Desert. Historic transportation routes cross this terrain, most notably The Bradshaw Trl, a legendary 19th-century gold rush trail that connected the Colorado River to coastal California. Evidence of the region's sparse water resources is found at Clapp Spring, a vital point for travelers navigating between Coon Hollow and the Old Palo Verde Rd. This 2012 survey provides a clear view of the natural relief and established desert tracks that have dictated movement through this corner of California for generations.