South Dakota Codified Laws
Chapter 09 - Future Estates In Real Property
Section 43-9-12 - Effect of remainder limited on estate for life or for years.

43-9-12. Effect of remainder limited on estate for life or for years.
When a remainder on an estate for life or for years is not limited on a contingency defeating or avoiding such precedent estate, it is to be deemed intended to take effect only on the death of the first taker, or the expiration by lapse of time of such term of years.

Source: CivC 1877, §237; CL 1887, §2753; RCivC 1903, §260; RC 1919, §330; SDC 1939, §51.0421.