About Niagara Falls
Niagara Falls is the collective name for three waterfalls: American Falls, Bridal Veil Falls, Canadian Falls,a port on the Niagara River opposite Niagara , New York. The city overlooks the Horseshoe, or Canadian, Falls cataract of Niagara Falls; the crescent-shaped cataract is 54 M (177 ft) high and carries nine times more water than its United States counterpart.
The Falls at Niagara are about 12,000 years old , The volume of water in the Great Lakes would cover North America in about 1 metre (3.5 ft.) of water.The mighty river plunges over a cliff of dolostone and shale. Niagara is the second largest falls on the globe next to Victoria Falls in southern Africa.
The Niagara Peninsula became free of the ice about 12,500 years ago. As the ice retreated northward, its meltwaters began to flow down through what became Lake Erie, the Niagara River and Lake Ontario, down to the St. Lawrence River, and, finally, down to the sea. There were originally 5 spillways from Lake Erie to Lake Ontario. Eventually these were reduced to one, the original Niagara Falls, at Queenston-Lewiston. From here the Falls began its steady erosion through the bedrock.