Boats of all kinds from small canoes to tugs pushing huge strings of barges pass through these locks located on the Mississippi River and visitors can view the activities from only a few feet away. Scenic outlook, boat launching, picnic areas and public restrooms available. Walking Tours: The Thomson Park Rangers give walking tours of Lock & Dam 13 every Sunday afternoon from Memorial Day thru Labor Day Weekend at 1:00 p.m. Please meet by the observation deck. During the winter months this is a prime bald eagle watching location. For safety concerns, participants must not wear open-toed shoes, flip-flops, sandals, or high heels. Tours are not given during inclement weather. For more details, call the Thomson Park Rangers at 815-259-3628.