Indus River Valley and Rann of Kutch, Pakistan24.5N 69.4E
Flowing down from the Tibetan plateau of western China, across the country of Pakistan in wide, sweeping curves, is the Indus River. It enters Pakistan via the Northern Areas (Gilgit-Baltistan), flowing through the North in a southerly direction along the entire length of Pakistan, to merge into the Arabian Sea near the port city of Karachi in Sindh, Pakistan. The total length of the river is 3,180 kilometers (1,980 mi) and it is Pakistan’s longest river.
Visible near the mouth of the river, to the east, is the Great Rann of Kutch, a seasonal salt marsh located in the Thar Desert in the Kutch District of Gujarat, India and the Sindh province of Pakistan. It comprises some 30,000 square kilometres (10,000 sq mi) between the Gulf of Kutch and the mouth of the Indus River in southern Pakistan. The area was a vast shallows of the Arabian Sea until continuing geological uplift closed off the connection with the sea, creating a vast lake that has since shrunk but floods seasonally during the monsoon.