1969 Map of San Luis Dam

About this map

San Luis Dam and the massive impoundment of the San Luis Reservoir dominate this landscape, reflecting a transformative era in California water management. The survey documents the newly established hydrological infrastructure, including the O'Neill Dam, the California Aqueduct, and the Delta-Mendota Canal, which reshaped the terrain around Santa Nella Village. Beyond the massive concrete and water works, the map captures the local human geography of the late 1960s, showing the Romero Sch and the Fore Bay Golf Club alongside the San Luis Gonzaga State Recreation Area. Dramatic elevation changes are evident from the heights of Basalt Hill and Quien Sabe Point, while specialized industrial markers like the Pumping-Generating Plant and Intake Structure reveal the technical complexity of the reservoir project shortly after its completion.