1966 Map of La Panza NE

About this map

The San Andreas Rift Zone dominates the northeast landscape of this 1966 survey, cutting a distinct geological path between the Temblor Range and the vast, arid expanse of the Carrizo Plain. This segment of the fault line reveals a network of canyons and seasonal drainages, where water remains a critical and scarce resource. Vital water sources such as Pinole Spring, Jenks Spring, and Mustang Spring are mapped alongside remote ranching infrastructure. Human presence is sparse, characterized by Pinole Ranch and functional landmarks like the Carrizo Plain Substation and scattered Storage Bins. The transport network consists primarily of unpaved tracks and graded routes, including Bitterwater Road and the San Juan Grade, which facilitate movement across this tectonic boundary during the mid-1960s.