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1956 Map of Telegraph Peak, 1988 Print
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1956 Map of Telegraph Peak

USGS Topo · Published 1988

About this map

Wrightwood and the high-altitude landscapes of the Angeles National Forest define this mid-century survey of the eastern San Gabriel Mountains. The map clearly delineates the San Andreas Rift Zone as it cuts through Lone Pine Canyon, a striking geological feature that dominates the central portion of the quadrangle. High peaks like Telegraph Peak, Thunder Mtn, and the iconic Mt Baldy Notch stand over a terrain marked by deep canyons and scattered mountain outposts. Local history is recorded through family-named landmarks such as Nielson Ranch and Clyde Ranch, alongside the Pioneer Historic Marker near the Cajon Basin. The presence of several Prospect labels and a Shaft reflect the region's mining history, while the Angeles Crest Highway provides the primary arterial access through this steep, complex topography.

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Map Details

Date Portrayed1956
Date Published1988
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:24,000
Physical Dimensions22 x 26.9 inches

Editions of this 1956 Telegraph Peak Map

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain