Answer: volga

AnswerCrossword Clue
VOLGARiver to the Caspian
VOLGAKuibishev's river.
VOLGAHistoric river.
VOLGAHistoric waterway.
VOLGALargest river of Europe.
VOLGAGorki's river.
VOLGAKazan's river.
VOLGARiver of song.
VOLGARiver to the Caspian Sea.
VOLGABoatmen's river
VOLGARiver for some boatmen
VOLGACertain boatman
VOLGARiver of song
VOLGALongest European river
VOLGALong river of Europe.
VOLGARybinsk Reservoir site
VOLGAImportant caviar source, with "the"
VOLGARiver to the Rybinsk Reservoir
VOLGALongest river of Europe
VOLGA"Mighty stream so deep and wide," in song
VOLGARiver connected by canal to the Don
VOLGAVital Russian route
VOLGAOne end of the Moscow Canal
VOLGARiver that runs by 11 of the 20 largest cities in Russia
VOLGALong river in Russia
VOLGAIn Russian literature it's often prefaced with the word "mother"
VOLGAIts delta lies near Astrakhan
VOLGAGorky Reservoir river
VOLGAMajor river of Russia
VOLGAIt's about 500 miles longer than the Danube
VOLGAEurope's longest river
VOLGACaspian Sea feeder
VOLGACaspian feeder
VOLGARiver to the Caspian Sea
VOLGARussian river
VOLGAUlyanovsk's river
VOLGARiver that originates in Russia's Valdai Hills
VOLGARiver that starts in the Valdai Hills
VOLGARiver through western Russia
VOLGALongest river in Europe