1960 Map of Clark Lake NE

About this map

Anza-Borrego Desert State Park occupies the southern half of this landscape, marking the transition from the high Santa Rosa Mountains into the arid expanse of Clark Valley. The area is defined by a network of historic pathways, including the Cactus Spring Trail and Rockhouse Trail, which provided essential access through the steep corridors of Martinez Canyon and Rockhouse Canyon. This 1960 field survey captures several small, isolated outposts and named locations that hint at the sparse human activity in this desert environment, such as Sarg, Corp, and Cleo. The map also documents physical traces of previous occupation, notably the Ruins located near the head of a canyon in the Santa Rosa range. The inclusion of a State Park Boundary and the line separating Riverside and San Diego counties provides a clear view of the regional administrative divisions at the time of the survey.