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1940 Map of Evey Canyon

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

USGS Topo · Published 1940

About this map

The San Gabriel Mts rise sharply above the developing community of Claremont in this 1940 edition, reflecting a landscape defined by the steep transition from mountain wilderness to the alluvial fans of the Los Angeles basin. Angeles National Forest lands cover the high terrain, where a distinct Firebreak and the Camp Baldy Line indicate the region's historical efforts to manage fire risk. The presence of the Lower San Antonio Guard Station at the mouth of San Antonio Canyon underscores this area's role as a critical watershed and recreational gateway.

Infrastructure of the era is evident in the Transmission lines cutting across the foothills and the winding path of Camp Baldy Road. Near the southern base of the mountains, local education and agriculture are represented by the Norton Sch and groves along Pomello Dr. This survey, revised by Alfred Jones and T. H. Moncure, provides a precise look at the jurisdictional boundary between Los Angeles Co and San Bernardino Co as it tracks through the rugged Evey Canyon terrain.