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1988 Map of Cirque Lake

Name: 1988 Topographic Map of Cirque Lake
Creator: U.S. Geological Survey
Published: 1989
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1989

About this map

Mining operations and high mountain terrain define this corner of the Gravelly Range during the late twentieth century. Located within the Beaverhead National Forest, the Browns Gulch Mining District shows a landscape densely marked by extraction history, including the Kearsage Mine, General Shafter Mine, and Marietta Mine. Numerous adits, prospects, and mine shafts are scattered across the slopes of Greybacks Gulch and Hollow Gulch, indicating a legacy of intensive mineral exploration in the Madison County highlands.

The topography is punctuated by distinctive alpine features such as Cirque Lake and Talus Lake near the summit of Baldy Mountain. Water systems like Greenhorn Creek and its various forks drain the southern slopes, while the northern reaches are carved by the headwaters of Alder Gulch and Bachelor Gulch. This map provides a clear record of the access trails and small-scale mining infrastructure that remained in place decades after the initial booms of the region.