SDCL § 43-5-4: Suspension of power to alienate trust as suspension of power of alienation.

The suspension of all power to alienate the subject of a trust is a suspension of the power of alienation. However, there is no suspension of the power of alienation by a trust or by equitable interests under a trust if the trustee has power to sell, either expressed or implied, or if there is an unlimited power to terminate in one or more persons in being.