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2021 Map of Mammoth Mountain

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

USGS Topo · Published 2021

About this map

Mammoth Lakes serves as the eastern gateway to this dramatic section of the Sierra Nevada, where the high peaks of the Mono and Madera county line meet the volcanic landscapes of the Eastern Sierra. The map details the complex geological and hydrological systems of the region, including the headwaters of the Middle Fork San Joaquin River and the protected Owens River Headwaters Wild and Scenic River. Centrally located, Minaret Summit marks the transition from the resort-focused slopes of Mammoth Mtn to the protected wilderness areas of the Inyo National Forest.

Notable for its geologic diversity, the area includes the columnar basalt of Devils Postpile National Monument and the distinct volcanic features of Crater Flat and Earthquake Dome. High-altitude recreation is traced through a dense network of paths, including the iconic John Muir Trl and the Pacific Crest National Scenic Trl. Settlements and waypoints like Agnew Meadows and Pumice Flat provide context for historical access to these alpine environments.