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1967 Map of Black Star Canyon

Name: 1967 Topographic Map of Black Star Canyon
Creator: U.S. Geological Survey
Published: 1969
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1969

About this map

The Santa Ana Mountains dominate this 1967 landscape, revealing a complex transition from early industrial extraction to late-century conservation and technology. Within the canyons of the Cleveland National Forest, the map records specific vestiges of the region's mining heritage, such as the Santiago Coal Mine and the Black Star Coal Mine. The presence of the Rocket Fuel Test Site tucked into Gypsum Canyon reflects the era's aerospace and defense expansion, while the Claymont Clay Mine suggests the continued value of the local geology.

Water management is central to the area's development, anchored by the Santiago Reservoir and Santiago Dam. The Santa Ana River marks the northern boundary, paralleled by the Anaheim Union Canal and the newly established Riverside Freeway. Small homesteads and points of interest like Hidden Ranch and Beeks Place provide specific targets for local history researchers tracking the settlement patterns of these steep canyons before further suburbanization reached the ridges.