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1982 Map of Blackburn Canyon
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1982 Map of Blackburn Canyon

USGS Topo · Published 1982

About this map

San Bernardino National Forest dominates this mountain landscape in the early 1980s, where complex water management infrastructure meets high-elevation terrain. The presence of an Aqueduct, Flume, and Siphon near the San Jacinto River highlights the engineering required to move water through these canyons. Smaller seasonal sources such as Milky Spring, Halfway Spring, and Bautista Spring dot the topography, providing vital points of reference for those navigating the backcountry.

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Map Details

Date Portrayed1982
Date Published1982
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:24,000
Physical Dimensions22 x 26.8 inches

Editions of this 1982 Blackburn Canyon Map

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain