1950 Map of Sphinx Mountain, 1987 Print
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1950 Map of Sphinx Mountain

USGS Topo · Published 1987

About this map

The Madison Range dominates this mid-century survey, defining the rugged boundary between the Gallatin National Forest and Beaverhead National Forest. This high-altitude landscape is characterized by prominent peaks like Sphinx Mtn and Koch Peak, which overlook a network of glaciated basins and drainage systems. The map documents the early infrastructure of the U.S. Forest Service, showing the placement of several outposts such as Big Spring Ranger Sta and Cache Creek Ranger Sta. Along the eastern edge, the transition from mountainous forest to cattle country is evident through established operations like the Michel Ranch and Lazy T 4 Ranch. A detailed network of pack trails, including the Bear Creek Trail and Wapiti Trail, connects these remote drainage basins long before the expansion of modern road systems in the region.


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Map Details

Date Portrayed1950
Date Published1987
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:62,500
Physical Dimensions18 x 21.8 inches

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Source Details

CopyrightPublic Domain