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2020 Map of Rock Island Ranch

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

USGS Topo · Published 2020

About this map

Rock Island Ranch sits at the southern base of a complex drainage network in Beaverhead County, where the landscape is defined by the convergence of several major seasonal waterways. The hydrological pattern of the area is anchored by Sage Creek and its tributaries, Little Sage Creek and Basin Creek, which carve through the high terrain. These watercourses are supplemented by isolated water sources like Hall Spring, which historically supported ranching operations in this arid environment.

The northern portion of the map is dominated by the White Hills and a series of deep depressions including Little Spring Gulch and Big Spring Gulch. Access through this territory is maintained via Sage Creek Road and Teddy Creek Road, following the natural contours of the gulches. The survey detail highlights the intricate relationship between the ranching infrastructure and the natural spring-fed gullies like Bear Gulch and Burnt Willow Creek.