Saint Lawrence Seaway began operating in 1959. Construction began in September, 1954. Over 6000 people had to be relocated because a reservoir would cover their land. Canada and the United States each operate a portion of the 450-mile seaway. It connects Lake Erie to Montreal to the Atlantic Ocean. Children could read Gail Gibbons’s The Great St. Lawrence Seaway. Children could also visit: Seaway. They could study the Suez Canal and the St. Lawrence Seaway in more detail. How are the two alike? How are they different?