Mich. Comp. Laws § 436.1915

Sec. 915. (1) Alcoholic liquor shall not be consumed on the public highways. (2) Except as provided in subsections (3) and (4), alcoholic liquor may be possessed or consumed in public parks, public places of amusement, or a publicly owned area not licensed to sell for consumption on the premises. (3) The governing body of a local governmental unit may prohibit by ordinance, order, or resolution the possession or consumption of alcoholic liquor in any public park, public place of amusement, or publicly owned area that is owned or administered, or both, by that local governmental unit. When land is leased from a department or agency of this state, an ordinance, order, or resolution adopted pursuant to this subsection shall be subject to the approval of the department or agency. (4) A department or agency of this state that administers public lands may prohibit by rule, order, or resolution the possession or consumption of alcoholic liquor on the public land under its jurisdiction. (5) As used in this section: (a) "Local governmental unit" means a county, city, township, village, or charter authority. (b) "Publicly owned area" means an area under the jurisdiction of a local governmental unit.