The Alpena is a sidewheel steamer that sunk in Lake Michigan in the "Big Blow", an October 15, 1880 storm that sank numerous ships. Built in 1866, by the Thomas Arnold of Gallagher & Company of Marine City, Michigan, the Alpena was 197 feet in length, 27 feet in breadth, with a depth of 12 feet. It was rated at 654 tons displacement.