2021 Map of Roten Valley South

About this map

Roten Valley defines this agricultural landscape where the high plateau of Rock Island Table gives way to a network of drainage systems across the Custer and Dawson county line. The terrain is characterized by a series of north-south valleys, including Sells Valley and Cottonwood Valley, which channel seasonal water toward the southern plains. Man-made water management is central to the area's modern land use, evidenced by the presence of irrigation infrastructure like Stump Ditch and numerous cattle tanks or small impoundments such as Feddersen Reservoir and Cyriacks Reservoir. The road system follows the rigid Public Land Survey System grid, with notable routes like Roten Valley Rd providing access through the dissected hills. Further south, the map captures early 21st-century water storage projects including Spring Cr Reservoir 19-B and Spring Cr Reservoir 18-A.