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2020 Map of Idaho Gulch

Name: 2020 Topographic Map of Idaho Gulch
Creator: U.S. Geological Survey
Published: 2020
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2020

About this map

Superior and Riverbend serve as the primary residential hubs along the Clark Fork river corridor, which carves a deep valley through the Lolo National Forest. The landscape is defined by a dense network of gulches and creeks, including Idaho Gulch, Shyrock Gulch, and Camp Four Gulch, all draining toward the river. Transportation and commerce are concentrated in the valley floor, where Interstate 90 and Mullan Rd E parallel the water, providing access to the Mineral County Airport.

Upland from the river, the terrain rises toward the Ninemile Divide on the boundary of Mineral and Missoula counties. The map details a complex system of forestry and access roads like Diamond Rd and Flat Creek Rd, which navigate the steep elevations. This 2020 survey documents the modern layout of these riverfront communities and the managed forest land that surrounds them, illustrating the relationship between the narrow inhabited valley and the expansive public lands above it.