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1956 Map of Hetch Hetchy Reservoir

Name: 1956 Topographic Map of Hetch Hetchy Reservoir
Creator: U.S. Geological Survey
Published: 1964
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1964

About this map

Hetch Hetchy Reservoir and the Grand Canyon of the Tuolumne River dominate the northern half of this 1956 mid-century survey, illustrating the managed water systems and high sierra wilderness of Yosemite National Park. The map documents the primary transit corridors of the era, including the winding Tioga Road and the historic Old Big Oak Flat Road which provided access to remote backcountry sites.

Detailed recreational and administrative infrastructure is noted at Yosemite Village, where the Yosemite Natl Park Hdqrs is established. The landscape is defined by high peaks and glacial features, from the heights of Mount Hoffmann to the depths of Deep Canyon. Researchers will find a network of established campgrounds like Smoky Jack Campground and Tamarack Flat Campground, alongside remote outposts such as White Wolf and the Hetch Hetchy Ranger Sta.