SDCL § 31-4-244: State Highway 471 from State Highway 71 to U.S. Highway 18.

The state trunk highway system includes the following in Fall River County:

From a point on State Highway 71 north of Ardmore near the southeast corner of section eight, township eleven south, range four east, thence northwest via Edgemont to a point on U.S. Highway 18 in Edgemont in the southwest quarter of section thirty-six, township eight south, range two east.