S.D. Codified Laws § 49-16A-72 (2026)
Any railroad within this state deeming it necessary to extend its fireguards may, for that purpose, enter upon any unoccupied land belonging to the state and burn a strip of land not exceeding two hundred feet in width on either side of its right of way.
Source: SDC 1939, § 52.0822; SDCL, § 49-20-21; SL 1980, ch 322 , § 71.