S.D. Codified Laws § 21-22-10
Unless the trustee is exempted by the terms of the instrument creating the trust from furnishing a bond or unless the instrument itself provides the amount and condition of such bond, the trustee shall, upon commencement of court supervision, petition the court to fix the amount and conditions of bond unless the conditions of § 21-22-21 have been met. The court shall then fix a time and place for hearing and direct notice thereof to be given as provided in this chapter. The bond shall be conditioned that the trustee will faithfully perform the trustee's trust and duly account for all money and property received, and the amount of the bond shall be fixed by the court in a sum which in the opinion of the court shall be sufficient to protect the interest of the beneficiaries. The bond shall be either with a corporate surety or with at least two personal sureties to be approved by the court who are residents and freeholders of this state and who together are worth in excess of all their liabilities and property exempt from execution, at least the amount of the bond. The trustee shall file the bond within ten days after entry of the order requiring that the bond be filed. If it appears that the proper administration of the trust requires that a new bond be given, the court may require such new bond.
SDCL 21-22-10