1956 Map of San Luis Obispo

About this map

Santa Lucia Range and the La Panza Range dominate this coastal survey, which highlights the rugged geography of the Central Coast before late-century development. The corridor between San Luis Obispo and Paso Robles follows the path of the Salinas River and the Southern Pacific RR, marking the primary artery for settlement and commerce. Along the coastline, the bathymetry added in 1979 reveals the seafloor topography of Estero Bay and San Luis Obispo Bay, while inland, the Carrizo Plain and Antelope Valley show a more arid, open landscape. Significant federal lands are represented, including Hunter Liggett Military Reservation and the Los Padres National Forest. Small coastal outposts like Cambria and San Simeon appear alongside established communities like Arroyo Grande and Santa Maria, illustrating the area's mix of agriculture, military presence, and emerging tourism.