SDCL § 31-4-156: State Highway 34 from Wyoming to Minnesota.

The state trunk highway system includes the following in Butte, Lawrence, Meade, Ziebach, Haakon, Stanley, Hughes, Hyde, Buffalo, Jerauld, Sanborn, Miner, Lake, and Moody counties:

(1) From a point on the Wyoming state line southeasterly to Interstate Highway 90;

(2) From a point on Interstate Highway 90 easterly via Sturgis to U.S. Highway 14;

(3) From a point on U.S. Highway 14 in Pierre, thence easterly via Pierre, Wessington Springs, Lane, Woonsocket, Artesian, Roswell, Vilas and Howard to U.S. Highway 81; and

(4) From a point on U.S. Highway 81 at Madison easterly via Madison, Colman, and Egan to the Minnesota state line.