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1984 Map of Crystal Crag
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1984 Map of Crystal Crag

USGS Topo · Published 1984

About this map

Devils Postpile National Monument serves as a central landmark in this 1984 survey, situated where the Middle Fork San Joaquin River passes through a corridor between the Minarets Wilderness and Inyo National Forest. The map documents a high-altitude landscape defined by heavy-use recreational corridors, specifically the intersection of the Pacific Crest National Scenic Trail and the John Muir Trail. In the northeastern corner, a dense cluster of alpine water bodies including Lake Mary, Lake Mamie, and Horseshoe Lake indicates a transition from the backcountry to established campgrounds and seasonal access points like Mammoth Pass. Further south, the terrain drops into Fish Creek Valley, where remote sites such as Iva Bell Hot Springs and the geologic formation of Pumice Butte suggest the geothermal and volcanic history that shaped this section of the Sierra Nevada.

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Map Details

Date Portrayed1984
Date Published1984
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:24,000
Physical Dimensions22 x 26.8 inches

Editions of this 1984 Crystal Crag Map

This is the sole edition of this map. No revisions or reprints were ever made.

Historical Maps of Mammoth Lakes Through Time

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain