| Answer | Crossword Clue |
|---|---|
| URAL | Part of the Eurasian boundary |
| ASIA | Eastern part of the Eurasian landmass |
| URAL | Part of the Europe-Asia boundary |
| NEGRO | Rio ..., part of the Venezuela- Colombia boundary |
| EMS | River forming part of the Germany-Netherlands boundary |
| DEE | River that forms part of the England-Wales boundary |
| URAL | River forming part of the boundary between Europe and Asia |
| MINO | River forming part of the boundary between Spain and Portugal: Span. |
