the.com/seaway
A liquid highway where freighters bigger than skyscrapers cruise through farmland to reach the ocean.
locks countSt. Lawrence Seaway uses 15 locks to climb 600 feet
openedOfficially launched in 1959 by Queen and Eisenhower
frozen shutCloses every winter when ice locks the route
inland oceanLets ships sail from Atlantic to Great Lakes
ship sizeLakers stretch up to 740 feet long