S.D. Codified Laws § 31-4-140 (2026)
The state trunk highway system includes the following in Lincoln County: From a point on State Highway 44 at Lennox near the southwest corner of section thirty-three, township ninety-nine north, range fifty-one west, thence north via Lennox to a point fifty feet south of the centerline of 278th Street at its intersection with State Highway 17.
Source: SL 1984, ch 209 , § 13; SL 1994, ch 237 , § 15; SL 2016, ch 151 , § 1; SL 2018, ch 171 , § 1.