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2024 Map of Challis

Name: 2024 Topographic Map of Challis
Creator: U.S. Geological Survey
Published: 2024
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2024

About this map

The Custer County Courthouse stands as the civic heart of Challis, positioned where the valley floor meets the rising slopes of the Salmon River Mountains. This 2024 survey captures the settlement’s layout along a grid of streets including North Ave and Main St, extending toward the Challis Cem on the town's southern edge. The landscape is defined by the broad Round Valley, a significant topographical depression bounded by the Pahsimeroi Mountains and the Lost River Range.

Irrigation and hydrology are central to the region's character, with Garden Creek and Hannah Slough feeding into the Salmon River as it winds north. Notable local landmarks such as Challis Hot Springs and the Challis Airport illustrate the modern utility of this mountain basin. The map also delineates the boundary of the Challis National Forest, highlighting the transition from residential developments like Matview Ests to protected federal lands.