The state trunk highway system includes the following in Union County: From a point on Interstate Highway 29 northwest of Elk Point near the north quarter corner of section thirty, township ninety - three north, range fifty west, thence easterly to the Iowa state line near the southwest corner of section thirty, township ninety - three north, range forty - eight west. Source: SL 1984, ch 209 , § 41.
State Highway 48 from Interstate Highway 29 to Iowa
SDCL § 31-4-168 — under STATE TRUNK HIGHWAY SYSTEM.
SDCL § 31-4-168