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2021 Map of Telegraph Peak

Name: 2021 Topographic Map of Telegraph Peak
Creator: U.S. Geological Survey
Published: 2021
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2021

About this map

Telegraph Peak and the high ridges of the San Gabriel Mountains dominate this 2021 survey, where the boundaries of the San Bernardino National Forest and Angeles National Forest meet. This terrain is defined by its dramatic relief, featuring prominent landmarks like Thunder Mtn, Gold Ridge, and the Miners Bowl south of Mount Baldy Notch. The landscape is a hub for high-altitude recreation and transit, with the Pacific Crest National Scenic Trl winding across the Upper Lytle Creek Divide and the Devils Backbone Trl tracing the narrow ridges.

Waterways like the North Fork Lytle Creek and Middle Fork Lytle Cr carve deep canyons through the rock, including Lone Pine Canyon and Coldwater Canyon. Small established flats such as Stockton Flat and Manker Flat provide rare level ground in this steep environment, while the northern edge of the map transitions into the Swarthout Valley. Local transit and trail networks, including the Three T's Trl and Chapman Trl, provide access to these peaks and canyons.