Where does the Moscow River flow?

The lessons of geography at school were listened to by everyone, but herenot everyone heard. Therefore, if you forget, where the Moscow River flows, do not despair. The Moscow River flows into another river - the Oka River. That in turn falls into an even larger river - the Volga. And across the Volga all the waters of these rivers flow together into the Caspian Sea. And the Caspian Sea is actually a lake, which, unlike other seas, does not belong to any ocean basin. So here the way of fast waters from Moscow ends!