S.D. Codified Laws § 9-38-8
All municipalities other than cities of the first class may create by ordinance a park board, serve without pay, the number of which shall be determined by the governing body of the municipality, and who shall serve at the pleasure of the governing body. The park board shall control and supervise the public parks of the municipality whether within or without the limits of the municipality. The park board shall be under the control and supervision of the governing body of the municipality, and the governing body shall prescribe all rules, regulations, and responsibilities of the park board. The ordinance creating the board shall specify the qualifications, the term of office of the members, the frequency of board meetings, the officers to be selected and a description of their duties, the number of members necessary for a quorum, and the scope of the board's authority.
SDCL 9-38-8