Where does the water that flows into Niagara Falls come from ?
The water from the Niagra Falls comes from the Wisconsin glaciations. This started about 10,000 years ago when they started to melt. You can go to http://en.wikipedia.org/wiki/Niagara_Falls and read all about it.
The water comes from all the Great Lakes, then down the Niagara River and then falls over the Niagara Falls.
The water comes from the Upper Great Lakes (Lake Superior, Huron, Michigan, and Erie).~Ninja Jackie-san
I'm a Wisconsin girl. The big lakes I live by :D
Lake Erie into Lake Ontario, out the St Lawrence river, into the Atlantic Ocean.