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2017 Map of Fourmile

Name: 2017 Topographic Map of Fourmile
Creator: U.S. Geological Survey
Published: 2017
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2017

About this map

Black Hills National Forest land dominates this section of Custer County, where the high-altitude landscape is defined by deep draws and steep canyons. The settlement of Fourmile serves as a central point in the north, while the scattered homes of Pleasant Valley lie to the southwest. This era of land management is characterized by a dense network of Forest Service access roads, such as Harry Mills Rd and Pleasant Valley Rd, which facilitate movement through the complex topography of Warren Gulch and Griffis Canyon.

Water management in this arid environment is evident through several named catchments and natural sources, including Ventling Reservoir and Ward Reservoir. Rare water features like North Pole Spring and Carroll Creek Spring highlight the essential points of hydration for both livestock and wildlife. Distinctive geological landmarks like Castle Rock and the Twin Sisters rise above the drainage systems of Fourmile Cr and Carroll Cr, providing clear navigational markers across the township lines.