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2021 Map of The Horn

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

USGS Topo · Published 2021

About this map

The Horn rises as a prominent landmark in this high-plains landscape of Johnson County, defining a region where water management is central to the terrain. This 2021 survey illustrates a complex network of irrigation and livestock water sources, including the Horn Cr Ditch, Frances Ditch, and Canon Ditch. These artificial waterways support the ranching economy of the Powder River Basin, connecting natural flows like the N Fork Powder River to scattered storage points such as Willow Glen Reservoir and Lyle Reservoir.

Named natural features like Specimen Hill and The Mesa provide topographic context to a territory etched by seasonal drainages, including Charlie House Draw and Steel Cr. The presence of several named water sources, such as Frenchy Springs and Dancehall Spring, points to the vital importance of reliable groundwater in this arid environment. The map also traces local transit corridors via Mayoworth Rd and Greub Rd, linking these remote landmarks to the broader county infrastructure.