Horseshoe Falls is also known as American Falls.
American Falls . Unlike the much larger Horseshoe Falls , of which two-thirds of the falls is located in Ontario , Canada , and one-third in the U.S. state of New York , the American Falls is entirely within the United States . Horseshoe Falls , also known as Canadian Falls , is one of three waterfalls which collectively form Niagara Falls on the Niagara River along the Canada-US Border . The remaining 10 % flows over American Falls and Bridal Veil falls .