Minn. Stat. § 514.17: MINERS.

Whoever performs labor, or furnishes any skill, material, or machinery, in or about the opening or working of any mine, at the request of the owner thereof, or of the lessee of such owner, or of any contractor with either, shall have a lien for the value thereof upon the interest of such owner or lessee, as the case may be, in the mine and its appurtenances, which lien may be asserted and enforced as in this chapter prescribed in respect to other liens upon real estate.