Related Clues:

• Schaffhausen's river
• Worms water
• Arnhem river
• Wies-baden's river
• Dusseldorf's river
• Major European river
• European wine valley
• Basel's river
• Main outlet
• River that starts in the Swiss Alps
• 'Watch on the --'
• River starting in Switzerland
• Lorelei's place
• Bonn's river
• Cologne's water