Mountain nature scene

mountain is an elevated portion of the Earth’s crust, generally with steep sides that show significant exposed bedrock. A mountain differs from a plateau in having a limited summit area, and is larger than a hill, typically rising at least 300 metres (1000 feet) above the surrounding land. A few mountains are isolated summits, but most occur in mountain ranges.

Mountains are formed through tectonic forceserosion, or volcanism, which act on time scales of up to tens of millions of years. Once mountain building ceases, mountains are slowly levelled through the action of weathering, through slumping and other forms of mass wasting, as well as through erosion by rivers and glaciers.