The Saint Lawrence River is part of the international boundary between Ontario, Canada, and the U.S. state of New York.
The Yukon River crosses the Canada-US border, but does not form part of it.
The following are some of the rivers that are in both Canada and the US: Columbia River, Kootenay River, Milk River, Souris River, Red River, Richelieu River. They all cross the Canada/US border at least once, and a few of them do so twice.
The Niagara River, which flows north connecting Lake Erie to Lake Ontario, between the province of Ontario and the state of New York. At Niagara Falls, parts of the falls are entirely within the US, and the remainder border Canada.
Rainy River, Pigeon River, St Marys River, St Clair River, Detroit River, Niagara River, St Lawrence River, St John River and St Croix River all form part of the International Boundary between Canada and the US.
St Clair river
The Columbia River and the St. Lawrence River
The St. Croix River.
St Lawrence River (between New York and Ontario) and St Croix River (between Maine and New Bruinswick) both form part of the International Boundary between Canada and the US.
st.Lawrence
I'm not sure
No, there is no Columbus River. However, there is a Columbia River that is both a part of the US and Canada.
What saint Lawrence river forms a boundary between the Canadian province of
It is Lake Erie.
nope
Quebec is still part of Canada, so no river runs between it and Canada
No they share border between washigton and orgen state (columbia)
The Yukon River crosses the Canada-US border, but does not form part of it.