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1940 Map of Camp Bonita

Name: 1940 Topographic Map of Camp Bonita
Creator: U.S. Geological Survey
Published: 1940
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1940

About this map

Angeles National Forest dominates this 1930s-era topographical study, revealing the steep canyons and early human developments along the East Fork San Gabriel River. The landscape is a network of fire management and early recreation, evidenced by numerous firebreaks and trails that crisscross the San Gabriel Mountains. Deep within these drainages, locations like Camp Bonita and the San Gabriel Guard Station serve as focal points for forest activity.

Resource extraction and ranching history are visible through landmarks such as the Allison Mine near Allison Gulch and the Baldora Mine to the northeast. Small outposts and seasonal dwellings, including Weber Camp, Thompson Ranch, and Williams Camp, are scattered throughout the watershed, connected by winding mountain roads. The presence of these named camps and mines offers a detailed look at the rural economy and wilderness management of Los Angeles County before the era of modern expansion.