1955 Map of San Vicente Reservoir

About this map

San Vicente Reservoir dominates the center of this landscape, its shoreline defining the canyons and ridges of the San Diego backcountry during the mid-1950s. The map illustrates a transitional period for the El Cajon Grant Boundary, where traditional ranching at Goodan Ranch and Wildwood Ranch coexists with developing settlements like Eucalyptus Hills and Moreno. The rugged interior is crossed by essential fire management infrastructure, including the Foster Truck Trail and numerous firebreaks etched into the hillsides. Military presence is prominent along the western edge at the Camp Elliott Naval Reservation, while the eastern portion of the sheet borders the Barona Indian Reservation. Local topography is punctuated by family-named landmarks such as Irvings Crest and Muth Valley, alongside several active quarries near the San Vicente Creek drainage.