Horseshoe Falls (Niagara)

The most powerful waterfall in North America by volume/Nature & Natural Wonders

Horseshoe Falls, also known as Canadian Falls, is the largest of the three waterfalls that make up Niagara Falls, straddling the US-Canada border. The crest line is approximately 790 m wide in a curved horseshoe shape, with water falling 51 m. About 90% of the Niagara River's flow (averaging 2,832 cubic meters per second) goes over Horseshoe Falls. The falls erode the dolomite limestone at a rate of about 0.3 m per year, having retreated roughly 11 km upstream from their original position since the last ice age.