The facility offers tours of the lighthouse, which remains an active aid to navigation overseen by the United States Coast Guard, and the museum specializes in the maritime history of Marquette, Lake Superior, and the iron ore trade.
In 2002, the Museum signed lease papers with the Coast Guard to offer guided, supervised public tours of the Marquette Harbor Light.
This 19th-century lens technology used carefully fitted glass prisms to mathematically focus a beam of light onto the sometimes-stormy waters of the Great Lakes.
Most Fresnel lenses have been rendered obsolete by high-intensity sealed beam lamps, so the lighthouses that formerly used them have transferred or lent them to the Museum.
Commander (later Captain) McClintock was awarded the Navy Cross for the Leyte Gulf service performed by him, his crew, and his ship.