There is more than one place called '''Niagara''':
Niagara Falls (New York) - The city in New York on the American side of Niagara Falls.
Niagara Falls (Ontario) - The city in the province of Ontario on the Canadian side of Niagara Falls.
Niagara Frontier - A region of the state of New York that includes areas of the United States surrounding Niagara Falls.
Niagara Region - A region of the province of Ontario that includes areas of Canada surrounding Niagara Falls.