1959 Map of Collins Valley

About this map

Anza-Borrego Desert State Park dominates this late 1950s survey, illustrating the complex drainage systems of the California desert before significant modern development. The landscape is defined by the convergence of steep canyons like Rockhouse Canyon, Alder Canyon, and Salvador Canyon into the central lowlands of Collins Valley. A network of intermittent water sources and vital riparian spots, such as Middle Willows and Lower Willows, are mapped along Coyote Creek, marking the essential stopping points for travelers and wildlife in an otherwise arid environment. The map details the transition from the high elevations of the Santa Rosa Mts and Buck Ridge down to the sandy reaches of Jackass Flat. For those researching local history, the inclusion of several primitive transportation routes, specifically designated as Jeep Trails, provides evidence of the era's backcountry access and desert navigation patterns.