Clue: Chief city of the Ruhr valley
Chief city of the Ruhr valley is a crossword puzzle clue that we have spotted 4 times. There are related clues (shown below).
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Recent usage in crossword puzzles:
- Universal Crossword - Nov. 11, 2011
- Universal Crossword - Aug. 8, 2011
- Universal Crossword - Sept. 11, 2009
- USA Today Archive - Dec. 21, 1998
