Photo of a US Navy Vought A-7 Corsair II flying over Niagara Falls.

Niagara Falls in the Niagara River between the cities of Niagara Falls, New York, and Niagara Falls, Ontario, Canada. The falls are divided by Goat Island into the American Falls,  167 ft high, and the Canadian, or Horseshoe, Falls,  158 ft high. More than six million cubic feet of water fall over the crest line every minute during peak flow with an average of about four million cubic feet of water per minute.