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1984 Map of Casa Diablo Mtn

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

USGS Topo · Published 1984

About this map

Casa Diablo Mtn and the surrounding Volcanic Tableland define this high-altitude landscape in Mono County during the mid-1980s. This transitional zone where the Inyo National Forest meets the arid eastern Sierra Nevada reveals a history of resource extraction and infrastructure development. The map details the Casa Diablo Mine and several nearby industrial features, including a Powerhouse, Surge Tank, and extensive Tailings piles near the Owens River.

Hydrological and geological features are central to the area's utility, from Antelope Spring in the north to the deeply cut Chidago Canyon. Transportation routes like the Sherwin Grade and Casa Diablo Road skirt the edges of Sherwin Hill, providing access for both forest management and mining operations. The inclusion of various extractive sites such as a Quarry, Borrow Pit, and Gravel Pit indicates a landscape heavily utilized for materials and energy production.