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1931 Map of Red Mountain
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1931 Map of Red Mountain

USGS Topo · Published 1931

About this map

The Angeles National Forest dominates this 1931 topographic study, capturing the steep drainage systems of northern Los Angeles County before extensive modern development. Steep terrain is bisected by the San Francisquito Canyon and Elizabeth Lake Canyon, showing the area just years after the devastating 1928 dam failure downstream. The presence of the Power House No 2 Reservoir indicates the early 20th-century focus on hydroelectric infrastructure and water management for the growing coastal basin.

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Map Details

Date Portrayed1931
Date Published1931
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:24,000
Physical Dimensions19 x 21.8 inches

Editions of this 1931 Red Mountain 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