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2023 Map of Sinker Butte

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

USGS Topo · Published 2023

About this map

Sinker Butte and Sinker Creek Butte command the high desert landscape above the Snake River, marking a territory defined by historic Western travel corridors. This high plateau in Owyhee County preserves the distinct paths of the Oregon Trl and the Emigrant Trl, which navigate the complex breaks and ravines leading toward the river canyon. The topography is characterized by the wide expanse of Murphy Flat and the deep incision of Sinker Creek, which carves a rugged path through the volcanic terrain.

Local ranching and transport history are evident in the network of rural roads such as Joyce Ranch Rd, Murphy Grandview Rd, and Doughty Rd. These routes connect isolated tracts across the township boundaries of T2S and T3S, tracing the same geographic necessities that guided nineteenth-century pioneers. The map captures a landscape where modern management and historic trails overlap, centered on the dramatic basaltic formations that have served as landmarks for generations of travelers in southern Idaho.