Analysis of information sources in references of the Wikipedia article "Kashmir Valley" in English language version.
The valley of Kashmir was formed by folding and faulting as the Himalayan mountain chain was thrust between the Indian subcontinent and the rest of Asia. The valley runs northwest to southeast along the strike of the mountain chain and is drained by the river Jhelum which cuts through the Pir Pinjal at the Baramullah gap. This structural basin is 135 km in length with a maximum width of 40 km and ranges in altitude from 5,200 to 6,000 ft above sea level. Its floor stands 1,600 m above sea level in the Jhelum flood plain. It covers an area of about 4,865 km square. The valley is accessible from the Punjab plain through two famous passes; the Pir Panjal pass (3,494 m) and Banihal pass (2,832 m).