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1941 Map of Alder Creek, 1948 Print
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1941 Map of Alder Creek

USGS Topo · Published 1948

About this map

Mining and mountain ranching define this mid-century landscape within the Angeles National Forest. Isolated operations like the Falcon Mine and Monte Cristo Mine are visible along the steep drainages of the San Gabriel Mountains, highlighting the region's historical extractive industry. The high-altitude terrain is marked by prominent peaks such as Pacifico Mtn and Granite Mtn, with Loomis Ranch providing a rare human settlement in the rugged interior north of the North Fork Middle Fork.

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Map Details

Date Portrayed1941
Date Published1948
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:24,000
Physical Dimensions16.9 x 20.8 inches

Editions of this 1941 Alder Creek Map

Historical Maps of Chilao Through Time

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain