SDCL § 31-4-202: U.S. Highway 183 from Nebraska to Interstate Highway 90.

The state trunk highway system includes the following in Tripp and Lyman counties:

(1) From a point on the Nebraska state line south of Wewela near the southwest corner of section thirty-one, township ninety-five north, range seventy-five west, thence north to U.S. Highway 18 at Colome north of the southeast corner of section thirty-three, township ninety-eight north, range seventy-five west;

(2) From a point on U.S. Highway 18 west of Winner near the southeast corner of section fourteen, township ninety-nine north, range seventy-eight west thence north to Interstate Highway 90 north of the southeast corner of section fifteen, township one hundred five north, range seventy-seven west.