The St. Lawrence River
This is the St. Lawrence River, which flows from Lake Ontario to the Gulf of St. Lawrence, and the Atlantic Ocean. It only actually separates the province of Ontario from the state of New York, and then flows through Quebec.
The St. Lawrence River's source is the Atlantic Ocean north of Maine. It flows southwest through Ontario and Quebec, then forms the boundary between New York state and Canada before terminating at its estuary into Lake Ontario.
the St Lawrence River flows through Quebec and Ontario which was once called NewFrance and Upper Canada.
The Niagara River flows from Lake Erie to Lake Ontario. The Welland Canal also runs between Lakes Erie and Ontario.
The Niagara River flows northerly from Lake Erie to Lake Ontario. It is 35 miles long and the border between the USA (New York State) and Canada (Ontario Province).
The river Niagara flows between Lake Erie and Lake Ontario, forming part of the border between Ontario and New York state.
Lake Superior and Lake Michigan both flow into Lake Huron, which flows into Lake Erie, which flows into Lake Ontario.
The Niagara River is part of the Great Lakes watershed. It flows out of Lake Erie, over Niagara Falls, and into Lake Ontario. The international border between Canada and the USA runs through the entire length of the Niagara River, including over the Falls.Lake Erie
The border between New York State, USA and Ontario, Canada is formed entirely by waterways. Lake Ontario is the longest stretch of the border. The rivers which form the rest of the border are the Niagara River, which flows from Lake Erie into Lake Ontario, and the Saint Lawrence River, which flows from Lake Ontario out to the Gulf of Saint Lawrence and the Atlantic Ocean.
Here are two. You can choose one. The Mackenzie river, in the Northwest, or the St. Lawrence river, which flows through Ontario and Quebec.
The Niagara River flows from Lake Erie into Lake Ontario.
Yes. It forms part of the US-Canada border near Lake Ontario in upstate New York, then flows through Quebec and enters the Atlantic Ocean at the Gulf of St. Lawrence.