S.D. Codified Laws § 5-15-18
The commission may sell unneeded or excess property of the commission other than real property and sever any buildings or structures from the land. The sale of any property by the commission shall be at public auction or upon sealed bids, to be held in Hughes County, South Dakota, to the highest bidder for cash. Notice of sale, containing terms of sale shall be given by the commission which shall be published in at least two of the official newspapers of the county once a week for two successive weeks next before the day, on or after which the sale is to be made, which date, and the location where such auction will be held, shall be stated in the notice and shall be at least fifteen days from the first publication of notice. The right to reject any and all bids is reserved. A sale may not be made before the day set but shall be made within sixty days thereafter. If bids or offers are used, the bids shall be in writing and shall be filed in the office of the chairman or secretary of the commission in Pierre.
SDCL 5-15-18