U kala saaro mid kasta oo ka mid ah meelaha soo socda sida lamadegaanka ama buuraha: Alps, Sahara, Rockies, Appalachian, Arabian, Gobi
Buuraha Alps: Buuraha kala duwan Saxaraha: Saxaraha Buuraha dhagaxyada leh Appalachian: Buuraha kala duwan Carabi: lamadegaanka Gobi: lamadegaanka