| Answer | Crossword Clue |
|---|---|
| EMS | River forming part of the Germany-Netherlands boundary |
| URAL | River forming part of the boundary between Europe and Asia |
| MINO | River forming part of the boundary between Spain and Portugal: Span. |
| KARA | River forming part of the European-Asian border |
| MOSELLE | River forming part of the German-Luxembourgian border |
| DEE | River that forms part of the England-Wales boundary |
