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2020 Map of Norton Ridge

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

USGS Topo · Published 2020

About this map

Norton Ridge Peak stands as the high point of this interior mountain landscape, where the Boise National Forest and Challis National Forest meet. The terrain is defined by a dense network of drainage systems, including Marble Creek, Norton Cr, and Canyon Creek, which flow through deep-cut valleys toward the Middle Fork Salmon River along the southern edge. The boundary between Valley County and Custer County traverses the high ridges and follows the Middle Fork canyon.

Remote infrastructure is centered on the Marble Creek Airport, a high-elevation landing strip providing access to this backcountry. The map documents a landscape primarily shaped by the Middle Fork Salmon River corridor, a significant water route even in this modern era. Researchers can trace the path of numerous smaller tributaries such as Mahoney Cr and Red Bluff Cr as they feed into the larger river system.