Of all the changes that took place in the Treasure State in the years following World War I, the most painful for some was Prohibition. Montana’s statewide ban began at 12:01 a.m. on December 31, 1918, well ahead of the national injunction. Steve Lozar shares the story of Prohibition’s impact on the Treasure State’s breweries and saloons. Lozar is an MHS trustee; member of the Salish, Kootenai, and Assiniboine tribes; great-grandson of an East Helena Prohibition-era “home brewer”; and proprietor of the Montana Beer Museum in Polson.