escarpment
Quick Summary
An escarpment is a steep wall of rock, earth, or ice. These geological features can be hundreds of kilometers long and stand as high as 125 meters above surrounding areas.123
A notable example is the Niagara Escarpment, a curved ridge of resistant dolomite that stretches over 1,000 km. It is recognized by UNESCO as a biosphere reserve and features a continuous footpath along its length. Escarpments are often formed by erosion, where softer rock layers are undercut, leaving a more resistant layer to form the steep face. They can also serve as natural defenses, as seen in historical examples where castles were built atop escarpments for protection.312
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