Minnesota Statutes Animals and Property (Ch. 343-348) § 348.01. For timber growing

Every person who shall plant one acre or more of land with forest trees of any kind other than black locust, and shall keep such trees growing in a thrifty condition, and not more than 12 feet apart either way, replacing yearly such as may die, or who shall maintain and manage an existing stand of timber on one acre or more of land, the owner residing thereon, such stand of timber shall not be less than 600 forest trees per acre, well spaced, shall receive from the state $2.50 per acre therefor for six successive years, not exceeding $25 in any one year. This section shall not apply to any railway company, to any person who has already received such compensation, nor to any person planting trees in compliance with an Act of Congress approved March 3, 1873, 1relating to the growth of timber on western prairies, or any act amendatory thereof.