The plat shall be tied directly to a minimum of two adjacent section or quarter-section corners defining a quarter section line located, monumented, and placed on a Coordinate System authorized under Section 236.18 of the Wisconsin Statutes. The grid bearing and distance of each tie shall be determined by field measurements. The coordinates, together with a description of the monuments marking the section or quarter-section corners to which the plat is tied, shall be shown on the plat. All distances and bearings shall be referenced to a Coordinate System and a horizontal datum approved by the town or County engineer, and shall be adjusted to the control survey network. [Code § 14.05-5.]