During Prohibition, Charlevoix became a popular place for gang members from the Chicago area. The Colonial Club, a restaurant and gambling joint on the city's north side became known as a popular place for the Midwest's most powerful and influential. John Koch, the club's owner, kept automobile license number "2", only second to the governor – a telling sign of his influence. The converted lumber barge "Keuka" served as a blind pig and speakeasy and sailed nightly between Boyne City and Charlevoix, hosting its guests in relative comfort. A murder aboard the ship and the pressure of US Treasury Department surveillance, however, forced the owner to scuttle the vessel in Lake Charlevoix.