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2023 Map of McMullen Basin

Name: 2023 Topographic Map of McMullen Basin
Creator: U.S. Geological Survey
Published: 2023
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2023

About this map

Sawtooth National Forest dominates the southern landscape of this Idaho interior, where the high-elevation terrain is defined by complex ridges and isolated water sources. The map records a series of high-altitude basins, including McMullen Basin, Cottonwood Basin, and Horse Basin, which historically served as vital landmarks for navigation and grazing in this part of Twin Falls County.

Strategic water management is evident through a network of specialized catchments such as Dry Fork Reservoir, Curtis Reservoir, and the Upper Burnt Cr Reservoir. These features, alongside named springs like Moonshine Spring and Rimrock Spring, highlight the necessity of water preservation in a region where seasonal drainages like Dry Cottonwood Creek and Donahue Creek shape the land. Trails such as the Donahue Cr Tr and Dry Hill Tr provide the primary means of movement through the steep elevations of North Cottonwood Ridge.