A mountain is a large landform that stretches above the surrounding land in a limited area, usually in the form of a peak. A mountain is generally steeper than a hill. Mountains are formed through tectonic forces or volcanism. These forces can locally raise the surface of the earth. Mountains erode slowly through the action of rivers, weather conditions, and glaciers. A few mountains are isolated summits, but most occur in huge mountain ranges.
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Take a look at some of the oldest mountains in the world. These used to be higher than the Himalayas until weathering took their toll on these craggy old majesties. They are well beloved and contain a noted Appalachian subculture of America.
Contributed by Matthew Carstensen
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