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1984 Map of Mammoth Mtn

Name: 1984 Topographic Map of Mammoth Mtn
Creator: U.S. Geological Survey
Published: 1984
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1984

About this map

Devils Postpile National Monument and the surrounding Sierra Nevada highlands define this 1984 survey, capturing a landscape deeply shaped by volcanic activity and alpine hydrology. The map details the complex terrain where the Mono and Madera County lines meet, centered on the high ridges of Mammoth Mtn and June Mountain. Notable for its density of outdoor infrastructure, the area includes the famous Devils Postpile formation along the Middle Fork San Joaquin River and the high-altitude Minaret Summit.

Major transit corridors for hikers, including the Pacific Crest National Scenic Trail and the John Muir Trail, are shown threading through the Ansel Adams Wilderness. The presence of the Mammoth Mtn Main Lodge and various recreation sites like Pumice Flat Campground reflects the era's established role as a premier mountain destination. Geologic interest is highlighted by the Inyo Crater Lakes and scattered Prospects in the northeast corner near Glass Creek.