On which of this river there is Thousand Islands?
Hudson
Potomac
Saint Lawrence River
Yukon
The Thousand Islands constitute an archipelago of 1,864 islands that straddles the Canada–US border in the Saint Lawrence River as it emerges from the northeast corner of Lake Ontario. They stretch for about 50 miles (80 km) downstream from Kingston, Ontario. The Canadian islands are in the province of Ontario and the U.S. islands in the state of New York.
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Hudson
Potomac
Saint Lawrence River
Yukon
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