There are two: the Caucuses and the Urals.
a mountain rage is a chain of mountains clashed together by earth quakes
The Alps
Most of the northern boundary is formed by the Alps. However, on the Iberian Peninsula, the Pyrenees form another northern border of Southern Europe.
Sistema Ibérico mountain range.
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The Himalaya Mountain Range
Rocky Mountains
A chain of mountains is often referred to as a mountain range.
Appalachian
Mount Everest is part of the Himalayas mountain range.
The Andes - over 4,000 miles! There are longer ones if you include mountain ranges under water...
Andes