SDCL § 7-9-4: Special townsite deed record required.

In counties where townsites are now or may hereafter be located upon government lands, it shall be the duty of the register of deeds to procure a book to be known as the townsite deed record, in which he shall record all deeds made by the mayor of any first or second class municipality or other competent officer, conveying any of such townsite property to claimants or trustees.