Minn. Stat. § 94.47: PURCHASING LANDS FROM UNITED STATES.

The commissioner is hereby authorized to purchase, to accept by gift or lease, or by tenure title, any lands owned by the United States government, including timber thereon, within the townships in which state forests, or state parks or game refuges or public shooting grounds have been set apart, or will hereafter be set apart by the legislature. These tracts when the title thereto has become vested in the state shall become and be a part of the state forests, or state parks, or game refuges, or public shooting grounds subject to all laws and rules relating to state forests, or state parks, or game refuges, or public shooting grounds.