| Answer | Crossword Clue |
|---|---|
| OISE | River that originates in the Ardennes Mountains |
| OISE | River rising in the Ardennes Mountains |
| OISE | River that rises in the Ardennes |
| SAAR | River that rises in the Vogesen Mountains |
| DEE | River that rises in the Cairngorm Mountains |
| EBRO | River that rises in the Cantabrian Mountains |
| colorado | A river that rises in the Rocky Mountains of northern Colorado and flows southwest for 1,468 miles (2,333 km) to the Gulf of California. It passes through the Grand Canyon |
