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2021 Map of Hermosa NW

Name: 2021 Topographic Map of Hermosa NW
Creator: U.S. Geological Survey
Published: 2021
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2021

About this map

Rapid City anchors the northwestern corner of this South Dakota landscape, where the urban edge meets the complex topography of Pennington County. The terrain is defined by a series of significant ridges and draws, including Spiken Ridge and Murphy Ridge, which channel the flow of Spring Creek and its many tributaries. This 2021 survey reveals a transition from organized municipal development to more rural ranching and residential tracts, connected by named corridors like Ambush Ranch Rd and Old Folsom Rd.

Smaller settlements and landmarks provide local orientation, from the modest cluster at Ajax in the south to the isolated peak of Potato Butte. Cultural and geographical markers such as Gobbler Knob, Mulligan Mile, and Prairie Chicken Draw illustrate the enduring local nomenclature. The map details the intricate drainage patterns of the region, specifically around Dry Creek and Coyote Draw, illustrating how the land was carved by water long before modern roads like Wrangler Rd were established.