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1988 Map of Thompson Falls

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

USGS Topo · Published 1988

About this map

The Clark Fork defines the landscape of this Sanders County region, where the town of Thompson Falls sits at a critical bend in the river. This late-1980s topographic study captures the infrastructure of the valley, from the Thompson Falls Dam and its adjacent Thompson Falls Reservoir to the Noxon Res waters. The town's civic core is detailed with the Cem, High Sch, and a Sewage Disposal Pond, illustrating the community's mid-century footprint.

Surrounding the valley, the Lolo National Forest rises sharply toward peaks like Clark Mountain and Elk Point. The map traces a network of drainage systems including Prospect Creek, Dry Gulch, and Cherry Creek, which feed the river valley. Notable landmarks such as Steamboat Island and the Thompson Falls Airport sit alongside industrial markers like the Gravel Pit, providing a clear view of the area's timber-and-transit economy during this era.