Mich. Comp. Laws § 322.501

Sec. 1. That all lawful taxes, together with the interest and charges thereon, assessed on any state land now or hereafter reserved on account of any road or ditch contract, shall be paid before the issue of any patent thereon; and in default of such payment, such lands shall revert to the state at the expiration of 3 months from the date when such patent shall have become due. The commissioner of the state land office shall restore such lands to market in the manner now provided by law, and at the minimum price at which such lands were reserved, with such taxes, interest and charges added thereto.