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1932 Map of La Brun
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1932 Map of La Brun

USGS Topo · Published 1932

About this map

The Los Angeles County infrastructure of the early 1930s is documented here, centering on the essential water and power networks within the Angeles National Forest. Significant utility features including the Aqueduct Tunnel and Power House No 1 trace the path of resource management through the steep terrain. The map emphasizes the industrial footprint of the era with labels for the City Transmission Line, a Surge Tank, and various other power corridors that cut across the deep drainages of San Francisquito. This survey preserves the topographical character of the Pelona Ridge and the complex system of canyons like Bouquet Canyon and Texas Canyon before further modern development. The numerous Firebreak lines marked across the slopes highlight the early forest management strategies employed to protect this critical watershed and power-generation hub.

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Map Details

Date Portrayed1932
Date Published1932
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:24,000
Physical Dimensions17.9 x 21.3 inches

Editions of this 1932 La Brun Map

This is the sole edition of this map. No revisions or reprints were ever made.

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain