Loading map...

1990 Map of Lake Eleanor

Name: 1990 Topographic Map of Lake Eleanor
Creator: U.S. Geological Survey
Published: 1990
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1990

About this map

O'Shaughnessy Dam anchors the landscape of this 1990 survey, regulating the waters of the Hetch Hetchy Reservoir as they flow into the Tuolumne River. The area is a study in managed wilderness, where the infrastructure of the Yosemite National Park boundary meets the high Sierra backcountry. The map details essential forest service and park service nodes, including the Miguel Meadow Ranger Station and Mather Ranger Sta, which served as critical points for wilderness management at the end of the 20th century.

The presence of the Evergreen Lodge and the Hetch Hetchy Backpackers Campground highlights the area's role as a destination for outdoor recreation. Beyond the major reservoirs of Lake Eleanor and Hetch Hetchy, the map reveals smaller alpine features like Swamp Lake and Laurel Lake, alongside natural landmarks like Tueeulala Falls and Wapama Falls. The terrain is marked by significant granite features such as Kolana Rock and Hetch Hetchy Dome.