Minn. Stat. § 389.04: RULES FOR SURVEYS.

In all surveys the basis for the courses must be defined. In subdividing townships, sections, or parts of sections, as established by the United States survey thereof, and in restoring lost or obliterated government corners, the county surveyor shall follow the rules established by or pursuant to acts of Congress, and all such surveys shall be made in strict conformity to the original survey made by the United States.