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Mountain Ranges and Belts A mountain is an area of land that rises steeply from the land around it. A single mountain is rare. Most mountains belong to ranges—long lines of mountains that were formed at about the same time and by the same processes. Ranges that are close together make up mountain belts. For example, the Rocky Mountain belt in western North America contains about 100 ranges. Mount Cumulus Mount Cumulus Rocky Mountain Belt Never Summer Mountain Range 1 2 3 Mountains rise high above the land around them. Most mountains are in groups called mountain ranges. Closely spaced mountain ranges make up mountain belts. Most of the world’s major mountain belts are located along tectonic plate boundaries. But mountain belts like the Appalachians (AP-uh-LAY-chee-uhnz) in eastern North America are in the interior of plates. Mountains such as these were formed by ancient plate collisions that assembled the present-day continents. Major Mountain Belts Major mountain belts mark the locations of present or past plate boundaries. Caledonian Belt Urals Alps PACIFIC OCEAN North American Cordillera Tasman Belt ATLANTIC OCEAN Appalachians INDIAN OCEAN Andes ATLANTIC PACIFIC OCEAN 254 Unit 2: The Changing Earth Himalayas OCEAN
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