2012 Map of Augustine Pass

About this map

Augustine Pass and Surveyors Pass define this high-desert landscape in Imperial County, marking key points of transit through the arid terrain. The map centers on the historic route of The Bradshaw Trl, a vital 19th-century overland trail used by miners and express riders traveling toward the Colorado River. This 2012 survey documents the enduring physical path of the trail as it winds through the desert floor, crossing the seasonal drainage of the Arroyo Seco. The area is characterized by vast open spaces and ephemeral watercourses, where the sparse network of trails and passes represents the primary record of human movement across the harsh California interior.