Kalaus (river)

The Kalaus (Калаус) is a north-flowing river on the Black Sea-Caspian Steppe of southern Russia, in Stavropol Krai. It is 436 km long, and has a drainage basin of 9700 km2. It is a tributary of the Manych. Formerly, when it reached the Manych, part of its waters would flow east and part west. Today a low dam blocks flow into the East Manych.