2010 South Dakota Code
Title 31 - HIGHWAYS AND BRIDGES
Chapter 04 - State Trunk Highway System
Section 31-4-134 - U.S. Highway 14 from Interstate Highway 90 to Minnesota.

31-4-134. U.S. Highway 14 from Interstate Highway 90 to Minnesota. The state trunk highway system includes the following in Pennington, Jackson, Haakon, Stanley, Hughes, Hyde, Hand, Beadle, Kingsbury, and Brookings counties:
From a point on Interstate Highway 90 east of Wall near the center of section four, township one south, range sixteen east, thence easterly via Quinn, Cottonwood, Philip, Midland, Fort Pierre, Pierre, Blunt, Miller, St. Lawrence, Wessington, Wolsey, Huron, Cavour, Iroquois, DeSmet, Lake Preston, Arlington, Volga, and Brookings to the Minnesota state line near the southeast corner of section five, township one hundred nine north, range forty-seven west.

Source: SL 1984, ch 209, § 7.