What is Mountain range?
A '''mountain range''' (mountain chain, mountain belt) is a geographic area with many [[mountain]]s. A 'mountain system' or 'system of mountain ranges' includes geological features that are in the same region as a mountain range. Mountain ranges usually include highlands or [[mountain pass]]es and [[valley]]s. Individual mountains in the same range do not always have the same geology or [[petrology]]. They may be a mix of different [[orogeny|orogenic expressions]] and [[terrain]]s, for example [[Thrust fault|thrust sheets]], [[Fault-block mountain|uplifted blocks]], [[Fold (geology)|fold]] mountains, and [[volcanic]] landforms. This results in a variety of [[Rock (geology)|rock]] types. == Major ranges == Most geologically young mountain ranges on the Earth's land surface are associated with either in the [[Pacific Ring of Fire]] or the [[Alpide Belt]]. The Pacific Ring of Fire includes the [[Andes]] of South America, extends through the [[North American Cordillera]] along the Pacific Coast, the [[Aleutian Range]], on through [[Kamchatka]], [[Japan]], [[Taiwan]], the [[Philippines]], [[Papua New Guinea]], to [[New Zealand]].<ref>{{cite web|url=http://geography.about.com/cs/earthquakes/a/ringoffire.htm|first=Matt|last=Rosenberg|publisher=About.com|title=Pacific Ring of Fire|access-date=2014-03-29|archive-date=2010-12-04|archive-url=https://web.archive.org/web/20101204224637/http://geography.about.com/cs/earthquakes/a/ringoffire.htm|url-status=dead}}</ref> The Andes is {{convert|7000|km|mi|0}} long and is often described as the world's longest mountain system.<ref>{{cite book|title=The Pearson General Knowledge Manual|year=2012|page=A-36|first=Edgar|last=Thorpe|publisher=Pearson Education India}}</ref> The Alpide belt includes [[Indonesia]] and southeast Asia, through the [[Himalayas]], and ends in the [[Alps]].<ref>{{cite book|title=Furnace of creation, cradle of destruction|url=https://archive.org/details/furnaceofcreatio00ches|first=Roy|last=Chester|page=[https://archive.org/details/furnaceofcreatio00ches/pa