Crossword clues for River into the Black Sea. 7 letters:DNIEPERRiver into Black Sea.DNIEPER1300 mi. river to Black Sea.DNIEPERRiver to the Black SeaDNIEPERRiver into the Black Sea.DNIEPER1400-mile river into the Black Sea.RIONRiver into Black Sea.DNIESTERRiver into the Black Sea.DNIESTERRiver to the Black SeaDNIESTER800-mile river into the Black Sea.RIONRiver into the Black Sea.DANUBERiver into the Black Sea.DANUBERiver to the Black SeaDNEISTERRiver flowing 850 miles from Poland to Black Sea.