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1935 Map of El Toro

Name: 1935 Topographic Map of El Toro
Creator: U.S. Geological Survey
Published: 1942
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1942

About this map

Moulton Ranch and the small settlement of El Toro anchor this Orange County landscape during the early 1930s, showing a transition between established agricultural land and the burgeoning transportation network of Southern California. The topography is dominated by the ridges of Lomas De Santiago and Cañada De Los Alisos, where seasonal drainage features like Agua Chinon Wash and Bee Canyon Wash cut through the terrain toward the coastal plain.

Major transit arteries define the region's connectivity, specifically the Atchison Topeka and Santa Fe railroad line and early highway routes including U S 101 and Trabuco Road. Significant water infrastructure for the era is noted at Tomato Spring and Lambert Reservoir, supporting the local ranching economy. This topographic record, surveyed by W. B. Upton, Jr., provides a clear view of the area's rural character before mid-century suburban expansion changed the Orange County interior.