Mont. Code Ann. § 16-6-312

Any room, house, building, boat, vehicle, structure, or place where alcoholic beverages are knowingly manufactured, sold, or bartered in violation of this code or 45-8-111 and all property knowingly kept and used in maintaining the same is hereby declared to be a public nuisance, and any person who maintains such a nuisance shall be guilty of a misdemeanor and upon conviction thereof shall be fined not less than $100 or more than $500 and be imprisoned not less than 30 days or more than 6 months.