canyon
A canyon (; archaic British English spelling: ''cañon''), gorge or chasm, is a deep cleft between escarpments or cliffs resulting from weathering and the erosive activity of a river over geologic time scales. Rivers have a natural tendency t ...
carved by the
Niagara River
The Niagara River ( ) flows north from Lake Erie to Lake Ontario, forming part of the border between Ontario, Canada, to the west, and New York, United States, to the east. The origin of the river's name is debated. Iroquoian scholar Bruce T ...
along the
Canada–United States border
The international border between Canada and the United States is the longest in the world by total length. The boundary (including boundaries in the Great Lakes, Atlantic, and Pacific coasts) is long. The land border has two sections: Canada' ...
, between the
U.S. state
In the United States, a state is a constituent political entity, of which there are 50. Bound together in a political union, each state holds governmental jurisdiction over a separate and defined geographic territory where it shares its so ...
of
New York
New York most commonly refers to:
* New York (state), a state in the northeastern United States
* New York City, the most populous city in the United States, located in the state of New York
New York may also refer to:
Places United Kingdom
* ...
and the
Canadian province
Canada has ten provinces and three territories that are sub-national administrative divisions under the jurisdiction of the Constitution of Canada, Canadian Constitution. In the 1867 Canadian Confederation, three provinces of British North Amer ...
of
Ontario
Ontario is the southernmost Provinces and territories of Canada, province of Canada. Located in Central Canada, Ontario is the Population of Canada by province and territory, country's most populous province. As of the 2021 Canadian census, it ...
. It begins at the base of
Niagara Falls
Niagara Falls is a group of three waterfalls at the southern end of Niagara Gorge, spanning the Canada–United States border, border between the Provinces and territories of Canada, province of Ontario in Canada and the state of New York (s ...
and ends downriver at the edge of the geological formation known as the
Niagara Escarpment
The Niagara Escarpment is an approximately discontinuous, arc-shaped but generally northward-facing escarpment, or cuesta, in Canada and the United States. The escarpment begins south of Lake Ontario and circumscribes the top of the Great Lake ...
near Queenston, Ontario, where the falls originated about 12,500 years ago. The position of the falls has receded upstream toward
Lake Erie
Lake Erie ( ) is the fourth-largest lake by surface area of the five Great Lakes in North America and the eleventh-largest globally. It is the southernmost, shallowest, and smallest by volume of the Great Lakes and also has the shortest avera ...
because of the falling waters' slow
erosion
Erosion is the action of surface processes (such as Surface runoff, water flow or wind) that removes soil, Rock (geology), rock, or dissolved material from one location on the Earth's crust#Crust, Earth's crust and then sediment transport, tran ...
of the riverbed's hard Lockport dolomite (a form of limestone that is the surface rock of the escarpment), combined with rapid erosion of the relatively soft layers beneath it. This erosion has created the gorge.
The force of the river current in the gorge is one of the most powerful in the world; because of the dangers this presents,
kayaking
Kayaking is the use of a kayak for moving over water. It is distinguished from canoeing by the sitting position of the paddler and the number of blades on the paddle. A kayak is a low-to-the-water, canoe-like boat in which the paddler sits fac ...
the gorge has generally been prohibited. On multiple occasions, the rapids of the gorge have claimed the lives of people attempting to run them. However, on isolated occasions, world-class experts have been permitted to navigate the stretch. Tourists can traverse the rapids of the Niagara Gorge on commercial tours in rugged jetboats, which are based at
Niagara-on-the-Lake, Ontario
Niagara-on-the-Lake is a town in Ontario, Canada. It is located on the Niagara Peninsula at the point where the Niagara River meets Lake Ontario, across the river from New York (state), New York, United States. Niagara-on-the-Lake is in the R ...
, at
Lewiston, New York
Lewiston is a Administrative divisions of New York#Town, town in Niagara County, New York, Niagara County, New York (state), New York, United States. The population was 15,944 at the 2020 census. The town and its contained village are named aft ...
English Channel
The English Channel, also known as the Channel, is an arm of the Atlantic Ocean that separates Southern England from northern France. It links to the southern part of the North Sea by the Strait of Dover at its northeastern end. It is the busi ...
, drowned trying to swim the rapids of the gorge as part of a publicity stunt in 1883.
Image gallery
File:DSC 8739 (10596155586).jpg, The Niagara River flows into the gorge at the falls and over thousands of years carves the gorge through the Niagara Escarpment
File:Niagara Falls Whirlpool aerial view.jpg, The Niagara River whirlpool basin in Niagara Gorge.
File:Niagara Gorge Trail.jpg, Niagara Gorge trail near the Lewiston-Queenston Bridge.