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2013 Map of Big Horse Basin Gap

Name: 2013 Topographic Map of Big Horse Basin Gap
Creator: U.S. Geological Survey
Published: 2013
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2013

About this map

Little Horse Basin Gap and Big Horse Basin Gap form a distinct high-desert corridor through the Owyhee landscape. This high-altitude terrain is defined by deep drainage systems, most notably the steep-walled canyons carved by Big Jacks Cr and Little Jacks Cr. The network of watercourses, including Rattlesnake Cr, highlights the erosional patterns of the drainage basins.

Remote and largely unsettled, the area is organized by the Public Land Survey System grids of T8S R3E, T8S R4E, T9S R3E, and T9S R4E. The topographic detail reveals the isolation of Horse Basin, a significant landform situated between these major canyon systems. This 2013 survey provides a clear look at the intricate relief and drainage network of this corner of Owyhee County, essential for understanding the hydrology and land use of the region's high basins.