Niagara Falls Geology Facts & Figures

[Macaulay]

· The Niagara River is about 58 kilometres in length and is the natural outlet from Lake Erie to Lake Ontario.
· The elevation between the two lakes is about 99 metres, half occurring at the fall themselves.
· The total area drained by the Niagara River is approximately 684,000 square kilometers.
· The average fall from Lake Erie to the beginning of the upper Niagara Rapids is only 2.7 meters.
Below the Chippawa-Grass Island Pool control structure, the river falls 15 meters to the brink of the fall.

[connie1987]

thanks for sharing! wikipedia forever!