Crossword clues for River to the Black Sea 6 letters:DANUBERiver into the Black Sea.DANUBERiver to the Black SeaDNIEPERRiver into Black Sea.RIONRiver into Black Sea.DNIEPER1300 mi. river to Black Sea.RIONRiver into the Black Sea.DNIEPERRiver into the Black Sea.DNIESTERRiver into the Black Sea.DNIEPERRiver to the Black SeaDNIESTERRiver to the Black SeaDNIEPER1400-mile river into the Black Sea.DNIESTER800-mile river into the Black Sea.DNEISTERRiver flowing 850 miles from Poland to Black Sea.