S.D. Codified Laws § 43-17-11 (2026)
If a stream, navigable or not navigable, forms a new course, abandoning its ancient stream bed, the owners of the land newly occupied take by way of indemnity the ancient stream bed abandoned, each in proportion to the land of which he has been deprived.
Source: CivC 1877, § 589; CL 1887, § 3212; RCivC 1903, § 905; RC 1919, § 503; SDC 1939, § 51.1106.