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1983 Map of Florence Lake

Name: 1983 Topographic Map of Florence Lake
Creator: U.S. Geological Survey
Published: 1994
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1994

About this map

Florence Lake and the South Fork San Joaquin River dominate this high-altitude landscape within the Sierra National Forest. This mapping effort reflects the region's mid-century hydroelectric development, featuring the Mono Tunnel and Ward Tunnel, alongside major infrastructure like the Vermilion Valley Dam at Lake Thomas A Edison. A Ferry route crosses the center of Florence Lake, connecting remote trails to MacKenzie Island and the rugged eastern shore.

Beyond the industrial utility of the reservoirs, the area serves as a significant recreational and wilderness hub. The Pacific Crest National Scenic Trail traverses the eastern sector through the John Muir Wilderness, passing by Sallie Keyes Lakes and Heart Lake. Notable geological features such as Bear Ridge, Infant Buttes, and the massive granite formation known as The Tombstone provide prominent landmarks for those navigating the High Sierra terrain.