The Ringneck & Western Railroad (reporting mark RWRR), a subsidiary of Watco, is a railroad that began operations in late May 2021 over 108 miles (174 km) of former Dakota Southern Railway track between Mitchell and Presho, South Dakota.

The line is part of a former Chicago, Milwaukee, St. Paul and Pacific Railroad (CMStP&P), better known as the Milwaukee Road, secondary built between Marquette, Iowa and Rapid City, South Dakota between 1880 and 1907.

[3] The Dakota Southern Railway, first under the ownership of brothers Alex and Dick Huff [4] and later Mike Williams and Stan Patterson, from the late 1980s to 2021 onward operated and between 2011 and 2016 rehabilitated the line as far as Presho with Federal TIGER Grants plus state funding.

According to Watco traffic consists mainly of grain, fertilizer, and paper products to or from the shuttle loading elevators near Presho, Kennebec, Kimball and a folding carton plant in Mitchell.

Between 10,000 and 12,000 cars are handled annually, primarily shuttle trains interchanging with BNSF in Mitchell.