Mountain range
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A mountain range or hill range is a series of mountains or hills arranged in a line and connected by high ground. A mountain system or mountain belt is a group of mountain ranges with similarity in form, structure, and alignment that have arisen from the same cause, usually an orogeny. Mountain ranges are formed by a variety of geological processes, but most of the significant ones on Earth are the result of plate tectonics. Mountain ranges are also found on many planetary mass objects in the Solar System and are likely a feature of most terrestrial planets.
The Namcha Barwa Himal, east part of the Himalayas as seen from space by Apollo 9
The Andes, the longest mountain range on the surface of the Earth, have a dramatic impact on the climate of South America
Montes Apenninus on the Moon was formed by an impact event.
Mountain
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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 300 metres (980 ft) above the surrounding land. A few mountains are isolated summits, but most occur in mountain ranges.
Mount Everest, Earth's highest mountain
Chimborazo, Ecuador, whose summit is the point farthest away from the Earth's center
Fuji volcano
Illustration of mountains that developed on a fold that has been thrust