Just past Astrakhan, the Volga flows into this inland "sea" that is actually a lake
[DOC] [TLE] Volga River | river, Russia | Britannica.com [PAR] Rising in the Valdai Hills northwest of Moscow, the Volga discharges into the 
Caspian ... source 748 feet (228 metres) above sea level to its mouth 92 feet 
below sea level.