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1956 Map of San Luis Obispo

Name: 1956 Topographic Map of San Luis Obispo
Creator: U.S. Geological Survey
Published: 1971
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1971

About this map

The Santa Lucia Range and the Temblor Range frame a diverse landscape of coastal basins and interior valleys in this mid-century survey. The Southern Pacific RR serves as a primary north-south artery, connecting the regional hub of San Luis Obispo to agricultural and residential centers like Paso Robles, Atascadero, and Arroyo Grande. Along the rugged coastline, landmarks such as Hearst Castle and Mission San Miguel Arcangel reflect the area's deep architectural and cultural layers.

Large military holdings, including Hunter Liggett Military Reservation and Camp Roberts Military Reservation, occupy significant northern territories, while the presence of the Klau Mine and Cambria Mine indicates a history of mineral extraction. Water management is evident through the development of the Nacimiento Reservoir and Whale Rock Reservoir, supporting the growth of communities from Morro Bay to the Santa Maria Valley. Educational and recreational infrastructure is highlighted by Cal Poly State University and several coastal preserves, including Montana De Oro State Park.