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1982 Map of Courtright Reservoir

Name: 1982 Topographic Map of Courtright Reservoir
Creator: U.S. Geological Survey
Published: 1983
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1983

About this map

Courtight Reservoir and Wishon Reservoir dominate this high-elevation landscape within the Sierra National Forest, illustrating a complex hydroelectric infrastructure system in the early 1980s. The map captures the industrial imprint of the Underground Powerhouse and Surge Chamber tucked between the two massive water bodies, which are connected by a network including the Courtright Dam and Wishon Dam.

Beyond the water management facilities, the terrain transitions into the John Muir Wilderness and Woodchuck Country, where backcountry camps like Chamberlains Camp and Blizzard Camp suggest a region used heavily for recreation and grazing. The Presence of the Prospect Mine and a Quarry near the Wishon Reservoir shoreline points to localized resource extraction alongside the larger energy projects. Geologic landmarks such as Maxson Dome and Loper Peak anchor the surrounding wilderness.