 Mount Everest North Face as seen from the path to the base camp, Rongbuk Valley, Tibet (5,160 m). Image by Luca Galuzzi (Lucag), via Wikimedia Commons. Licensed CC BY-SA 2.5 |
MountainMountain Mountain Large natural elevation of the Earth's surface For other uses, see Mountain (disambiguation). A mountain is an elevated portion of the Earth's crust, generally with steep sides that show significant exposed bedrock. Although definitions vary, a mountain may differ from a plateau in having a limited summit area, and is usually higher than a hill, typically rising at least 600 metres (2,000 ft) above the surrounding land. A few mountains are isolated summits, but most occur in mountain ranges.[1] Mount Everest, Earth's highest mountain Mountains are formed through tectonic forces, erosion, or volcanism,[1] which act on time scales of up to tens of millions of years.[2] Once mountain building ceases, mountains are slowly leveled through the action of… (Source: Wikipedia)
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