Kotorosl

The Kotorosl (Ко́торосль) is a right tributary of the Volga in Yaroslavl Oblast, Russia. The river flows from Lake Nero near Rostov past Karabikha and enters the Volga in Yaroslavl. It is 132 km long, and has a drainage basin of 6370 km2.

In the medieval ages, the river was highly important strategically, for it connected Rostov with major waterways of Russia. The Kotorosl's main tributary is the Ustye, which flows past Semibratovo to Borisogleb.