Minn. Stat. § 306.66

The cemetery corporation mentioned in section 306.65 may from time to time subdivide or rearrange its cemetery as necessary in the conduct of the business, but no plat of the subdivision or rearrangement may interfere with the rights and privileges of the lot owners of the cemetery without their consent, and the plat need not be filed in the office of the county recorder. A plat of the subdivision or rearrangement must be kept for public inspection at the cemetery. Cement or other nondestructible markers at least three inches in diameter and at least eight inches in length, with one of the markers showing the number of the lot, must be placed at the corners of each lot of the subdivision or rearrangement.