S.D. Codified Laws § 43-17-26
Current with legislation signed by the governor on or before 3/6/2024
Nothing in §§ 43-17-20 to 43-17-25, inclusive, shall be construed to alter rights of ownership and use of any lands bordering upon navigable lakes or streams or those portions of such lands between ordinary high water mark and ordinary low water mark.
SDCL 43-17-26