A mountain range in South-west Asia that separates Asia from Europe : Caucasus mountains.
I am a plain formed by the rivers Ob, Yenisei, and Lena :Great Siberian Plain or Northern Lowlands.
An area of inland drainage into which the Amu Darya and, Syr Darya drain : Turan Plain.
I am a small zone from which several mountain ranges appear to radiate out: Pamir Knot.
A plateau that ** between the Alborz and Zagros mountain ranges : Plateau of Iran.**