Stock photography, photos: Dubuque Ice Harbor Stock photos of Lilly Belle riverboat in Dubuque, Iowa Photograph: © John Oeth Click for a larger image and more information Keywords associated with this stock photo: Dubuque, Iowa, IA, USA, United, States, of, America, Mississippi, River, riverboat, boat, museum, Ice, harbor, harbour, steam, power, powered, paddle, wheel, tour, tourist, attraction, history, historical, horizontal, water, Lilly, Belle, John Oeth