Which famous cataract lies on the border between Ontario, Canada, and New York State?

Niagara Falls is the well-known cataract that straddles the border between Ontario, Canada, and New York State. It consists of three waterfalls: the American Falls, Bridal Veil Falls, and the Horseshoe Falls. The significance of Niagara Falls extends beyond its majestic beauty; it also plays a vital role in hydroelectric power generation and is a popular tourist destination, attracting millions of visitors each year.

The other cataracts listed, such as Victoria Falls, Angel Falls, and Iguazu Falls, are indeed remarkable in their own right but are located in different parts of the world. Victoria Falls is situated on the border of Zambia and Zimbabwe in Africa; Angel Falls is found in Venezuela, and Iguazu Falls is located on the border between Argentina and Brazil. Each of these falls has its unique features and cultural significance, but when it comes to the specific geographic location mentioned in the question, Niagara Falls is the definitive answer.