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How was niagara falls formed?

Niagara Falls was formed 12,000 years ago when melting glaciers began to form the large freshwater lakes now known as the Great Lakes. The water in Lake Erie ran downhill toward Lake Ontario, forming a river. This river crosses a ridge known as the Niagara Escarpment. The area where this river falls over the cliffs of the Niagara Escarpment is known as Niagara Falls.
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How was niagara falls formed?
Niagara Falls is on of nature's greatest wonders. These gigantic waterfalls were formed 10,000 years ago when the last glaciers were retreating north. As the glaciers moved, they exposed cliffs at Niagara and allowed water to flow from Lake Erie into  wiki.answers.com
How to Visit Niagara Falls.
1. Find a place to stay when you visit Niagara Falls. There are plenty of hotels that offer an excellent view of the falls. You can also find a number of Bed and breakfasts if that's more your style. Check out Niagarafallstourism.com for a list of  www.ehow.com
How to Fly to Niagara Falls
1 Know the four airports that serve the region: Toronto Pearson International Airport (YYZ) - about 1.5 hours to the north. Hamilton International Airport (YHM) - about 1 hour to the north. Buffalo Niagara International Airport (BUF) - about 30  www.wikihow.com
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