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1950 Map of Black Star Canyon
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1950 Map of Black Star Canyon

USGS Topo · Published 1950

About this map

Irvine Lake and the Santiago de Santa Ana mountains dominate this 1950 topographical study, revealing the industrial and water-management landscape of eastern Orange County just after World War II. The map identifies the Santiago Dam and a series of significant canyons including Black Star Canyon, Fremont Canyon, and Gypsum Canyon. A distinct history of resource extraction is evident through the labeling of the Santiago Coal Mine (Inactive) and the Black Star Coal Mine (Inactive), both marked as inactive by this date. To the north, the Santa Ana River flows through the Santa Ana Canyon, supported by infrastructure like the Diversion Dam, Anaheim Canal, and Santa Ana Canal. This area reflects a mid-century period where recreation at Irvine Park and the preservation of the Cleveland National Forest balanced against the region's mining and hydraulic history.

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Map Details

Date Portrayed1950
Date Published1950
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:24000
Physical Dimensions22 x 26.8 inches

Editions of this 1950 Black Star Canyon 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