Onondaga Limestone
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The Onondaga Limestone is a group of hard limestones and dolomites of Devonian age that forms geographic features in some areas in which it outcrops; in others, especially its Southern Ontario portion
Chittenango Falls
Niagara Escarpment
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The Niagara Escarpment is an approximately 1,050-kilometre-long discontinuous, arc-shaped, but generally northward-facing escarpment, or cuesta, in Canada and the United States. The escarpment begins
Onondaga Limestone
…such as in western Pennsylvania and Michigan but they do not form prominent geographic features. A similar and more prominent outcrop known as the Niagara Escarpment runs parallel and about 25 miles (40 kilometers) to the north through upstate New York, and similarly curves northwestward in southern Ontario toward…
Rattlesnake Point near Milton, Ontario
The Niagara River has carved the Niagara Gorge through the Niagara Escarpment over thousands of years.
Niagara Escarpment in Grimsby, Ontario, from about 1060 metres (3,500 feet) above sea level
A section of escarpment cliff, seen from the Bruce Trail in Ontario