Jammu and Kashmir is home to several valleys such as the Kashmir Valley, Tawi Valley, Chenab Valley, Poonch Valley, Sind Valley and Lidder Valley. The Kashmir valley is wide and in area. The Himalayas divide the Kashmir valley from the Tibetan plateau while the Pir Panjal range, which encloses the valley from the west and the south, separates it from the Great Plains of northern India. Along the northeastern flank of the Valley runs the main range of the Himalayas. This valley has an average height of above sea-level, but the surrounding Pir Panjal range has an average elevation of . The Jhelum River is the major Himalayan river which flows through the Kashmir valley. The Tawi, Ravi and Chenab are the other important rivers flowing through the region.