They are the old plateaus made of hard crystalline rocks. They comprise the Plateau of Arabia, the Deccan plateau (India) and the Plateau of Yunnan (Indo-China) and Shan Plateau (Myanmar). The Plateau of Arabia occupies the entire Arabian Peninsula. It is dry region. The Deccan Plateau occupies a large part of the Indian peninsula. It lies between the central mountains, the Western Ghats and the Eastern Ghats. It slopes to the east and most of its rivers flow in that direction. The Yunnan Plateau is situated to the South-West of China. It is a high block consisting of lime-stone. The Shan Plateau is a continuation of Yunnan Plateau.