1956 Map of Valley Springs

About this map

Lancha Plana and Campo Seco anchor the northern landscape of this mid-century survey, situated along the Mokelumne River just as the region’s water and industrial patterns were shifting. The Southern Pacific railroad cuts through the terrain, connecting small hubs like Wallace, Burson (Helisma Station), and the namesake Valley Springs. The map documents a transition from old mining and ranching interests, evidenced by the McCarty Mine, Toyon sawmill, and Double Springs Ranch, toward large-scale water management. The footprint of Hogan Dam is visible, alongside the blue-shading indicating the anticipated reservoir inundation areas, which would soon forever alter the valley floor near Camanche. Numerous Clay Pits and family holdings like Rocabella Ranch and Ospital Ranch provide a detailed view of local land use before modern expansion.