Upon approval of the final plat, submitted under the provisions of § 11-3-20.1 or 11-3-20.2, by the governing body of the municipality or county, said plat shall be filed in the office of the register of deeds of the county wherein the property is located. The register of deeds shall record said plat and shall vacate all previous plats in the same manner as prescribed by § 11-3-18.
SDCL 11-3-20.4