S.D. Codified Laws § 34-27-9
Each section, block, lot, and individual grave space in a cemetery shall be regularly numbered, such numbers to appear and be marked upon the face thereof, and the map or plat required by § 34-27-8 when completed shall have designated thereon, by uniform marking appearing in the proper grave spaces, all present burials and occupied graves located within such cemetery. The graves of all veterans of the armed forces of the United States, including their allies, confederate veterans, and war nurses in the time of war, and veterans as defined by § 33A-2-1, located in each cemetery shall be designated by a separate and distinct uniform mark. Thereafter it shall be the duty of such person, association, or corporation in charge of such cemetery or place of burial to regularly mark and designate upon such plat or map, the exact grave space occupied at the time of interment, by all subsequent burials, within such cemetery.
SDCL 34-27-9