Great Lakes Harbors Study-Interim Report on Huron Harbor, Ohio, Letter from the Secretary of the Army Transmitting a Letter from the Chief of Engineers, Department of the Army, Dated March 28, 1961, Submitting a Report, Together with Accompnaying Papers and an Illustration...requested by Resolutions of the Committees on Public Works, United States Senate and House of Representatives, Adopted on May 18, 1956 and June 27, 1956