because it is
St. Mary's River, St. Claire River, and Niagara River.
The Erie Canal linked the great lakes to the Atlantic Ocean
Water channels, often referred to as waterways, include rivers, lakes, canals, and oceans. Major global waterways include the Amazon River, Nile River, Mississippi River, and the Great Lakes. Canals such as the Panama Canal and Suez Canal are significant for international shipping. Additionally, oceanic channels like the Strait of Gibraltar and the Bering Strait connect large bodies of water and facilitate marine navigation.
The Grand River connects to Lake Michigan. It flows through western Michigan and ultimately empties into Lake Michigan at Grand Haven. While the Grand River does not directly connect to the other Great Lakes (Lake Superior, Lake Huron, or Lake Erie), it is part of the larger Great Lakes watershed system.
It is the St. Lawrence river that links The Great Lakes and the Atlantic Ocean
St.Lawrence river connects and drains the Great Lakes . It is the busiest inland waterway of the world It allows large ocean-going vessels from the Atlantic to reach the interior of America . The Mississippi River is navigable up to St.Louis and is also connected by canals to the Great Lakes. Thus opening up the interior of the vast American continent and establishing important river ports.
They dug canals to connect different waterways
ST. LAWRENCE RIVER flows out the Great Lakes
st Lawrence river. jamacan sea. connedicut ocean
The st.Lawrence river connects the great lakes , starting at lake Huron and ending at lake Superior to the Atlantic ocean.
The Great Lakes are connected to the Gulf of Mexico by way of the Illinois River (from the Chicago River) and the Mississippi River. An alternate track is via the Illinois River (from Chicago), to the Mississippi, up the Ohio, and then through the Tennessee-Tombigbee Waterway(combination of a series of rivers and lakes and canals), to Mobile Bay and the Gulf. Commercial tug-and-barge traffic on these waterways is heavy.