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1982 Map of Blackburn Canyon

Name: 1982 Topographic Map of Blackburn Canyon
Creator: U.S. Geological Survey
Published: 1982
License: https://creativecommons.org/publicdomain/mark/1.0/

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.

Local administrative and utility nodes like the Cranston FS Station, a Lookout Tower atop Red Mountain, and Sewage Disposal Ponds near Strawberry Creek indicate the active management of the San Jacinto State Game Refuge. Distinctive ridges and flats, including Rouse Ridge, Blackburn Ridge, and Hixon Flat, define the drainage patterns for Bautista Creek and its many tributaries, while the Toll Road and Control Road provide the primary access through the steep elevations.