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1998 Map of Tenmile Lake

Name: 1998 Topographic Map of Tenmile Lake
Creator: U.S. Geological Survey
Published: 2002
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2002

About this map

The Selway Bitterroot Wilderness dominates this 1990s landscape, spanning the rugged divide where Ravalli and Idaho counties meet. This high-altitude terrain is defined by the sharp transition between the Nez Perce National Forest and the Bitterroot National Forest, where steep drainages and glacial lakes carve out the western Montana and eastern Idaho border. The map documents the intricate hydrology of the region, from the headwaters of Roaring Lion Creek to the deep basins holding Tenmile Lake and Twin Lakes.

Administrative presence is concentrated at the Lost Horse Work Center and the Schumaker Campground, illustrating the Forest Service infrastructure required to manage these protected lands. Unusual terrain features like Ohio Slide and Poverty Slide point to the geological volatility of the steep slopes overlooking Lost Horse Creek, providing essential data for those studying the physical history and natural shifts of this wilderness boundary.