|THE KOSI RIVER, BIHAR, INDIA|
Shift in courses is a regular feature of
north Bihar rivers. The Kosi for example has moved westwards by 120 km in
the past 250 years through more than 12 distinct channels. The river
which used to flow near Purnea in the 18th century, now flows east of Saharsa.
|A satellite picture of the various migrations undergone by the Kosi.|
|The Kosi about to change its bed. Eventually the circular meander will get cut off from the main stream, leaving behind an oxbow lake while the river finds itself a new route.|
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