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1952 Map of Michigan Bluff

Name: 1952 Topographic Map of Michigan Bluff
Creator: U.S. Geological Survey
Published: 1975
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1975

About this map

The gold-mining legacy of the Sierra Nevada foothills is etched across this landscape, defined by the Forest Hill Divide and the deep canyons of the Middle Fork American River. The settlement of Michigan Bluff serves as a central point for the region's historic activity, situated near the extensive Big Gun Diggings. The map reveals a high density of named mining operations from the mid-century era, including the Mountain Chief Mine, Hidden Treasure Mine, and Golden Gate Mine, illustrating the intense extraction that once drove the local economy.

Industrial sites and former camps are documented through labels like Sunny South (Site), Maintop (Site), and Ditch Camp (Site), providing essential data for locating vanished structures. To the south, the Rubicon River forms the boundary with El Dorado County, while the northern reaches show the complex drainage of Volcano Canyon and Sugar Pine. Within the Tahoe National Forest, ridges like Chicken Hawk Ridge and Deadwood Point rise above the river forks, marking a terrain that remains largely defined by its mid-20th-century topography.