Niagara Falls is three waterfalls that straddle the international border between the Canadian province of Ontario and the US state of New York. They form the southern end of the Niagara Gorge.
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The three waterfalls straddle the border between Ontario and New York, forming the southern end of Niagara Gorge. © Ken Lund from Reno, Nevada, USA, CC BY-SA 2.0, via Wikimedia Commons

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