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1950 Map of Yorba Linda

Name: 1950 Topographic Map of Yorba Linda
Creator: U.S. Geological Survey
Published: 1950
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1950

About this map

The Olinda Oil Field dominates the western hills of this 1950 survey, marking a period where petroleum extraction and citrus ranching defined the landscape of northern Orange County. The transition from industrial hill country to the developing residential and agricultural grids is evident in the layout of Yorba Linda and Placentia, where streets like Valencia Ave and Alta Vista Ave begin to organize the terrain. In the canyons of the Santa Ana Mountains, natural features such as La Vida Mineral Springs and Carbon Canyon Mineral Springs highlight the era's local recreation and wellness destinations.

Transportation infrastructure is centered on the Union Pacific and Pacific Electric lines, which supported both the movement of oil and the shipment of local produce. Significant water management features, including the Anaheim Union Reservoir and a dedicated Percolation Basin, underscore the critical irrigation needs of the region's citrus groves before the post-war suburban shift reached its peak.