1967 Map of Tar Spring Ridge

About this map

Lopez Dam Spillway is a focal point of this late 1960s survey, shown while the reservoir area was still undergoing significant transformation. Labels for a Proposed Location and areas marked Under Construction detail the expansion of the water infrastructure along Arroyo Grande Creek, which flows into the basin near Lopez Park. The map documents a landscape defined by steep ridges and deep canyons, where rural life persisted at established sites like Ranchita Ranch and Tar Spring Ranch.