S.D. Codified Laws § 32-26-35 (2026)
No person may drive any vehicle on the left side of the roadway when approaching or upon the crest of a grade or a curve in the highway where the driver's view is obstructed within such distance as to create a hazard if another vehicle is approaching from the opposite direction. A violation of this section is a Class 2 misdemeanor.
Source: SDC 1939, § 44.0313; SL 1953, ch 230 ; SL 1967, ch 192 ; SL 1970, ch 175 , § 17; SL 1989, ch 255 , § 172.