Loading map...

1966 Map of Shewag Lake

Name: 1966 Topographic Map of Shewag Lake
Creator: U.S. Geological Survey
Published: 1980
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1980

About this map

The Continental Divide defines the high-altitude boundary of this 1960s survey, marking the jagged intersection of the Salmon National Forest in Idaho and the Beaverhead National Forest in Montana. This high-country landscape is anchored by prominent summits such as Pyramid Peak, N Mountain, and Eagle Mtn, which overlook a network of steep drainages including Sheep Creek and the long course of Fourth of July Creek.

Remote and largely roadless, the area was navigated via a series of Pack Trails and occasional Jeep Trails that connected isolated water bodies like Shewag Lake and Big Lake Creek. The drainage patterns are intricate, with the North Fork and South Fork of Sheep Creek carving through the northern sector, while Tower Creek and Pruvan Creek drain the surrounding slopes. The map captures a moment before modern accessibility, when the border between Beaverhead and Lemhi counties remained a true wilderness frontier.