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1940 Map of Trail Canyon
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1940 Map of Trail Canyon

USGS Topo · Published 1940

About this map

The San Gabriel Mountains dominate this 1940 edition, showing the high-elevation backcountry of the Angeles National Forest just before mid-century. Steep-walled drainages like South Fork Pacoima Canyon and Bear Canyon define the landscape, where water sources such as Yerba Buena Spring and the Big Cienega were critical waypoints for early forest travel. The map details a network of ridges and deep ravines, including Gold Canyon and Slaughter Canyon, anchored by prominent summits like Condor Peak and Iron Mtn.

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Map Details

Date Portrayed1940
Date Published1940
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:24,000
Physical Dimensions17.1 x 20.2 inches

Editions of this 1940 Trail Canyon Map

Historical Maps of Los Angeles County Through Time

539 maps found

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain