| Answer | Crossword Clue |
|---|---|
| NAPO | 550-mile river, tributary of the Amazon. |
| DESNA | 550-mile tributary of the Dnieper. |
| ODER | 550-mile river to the Baltic. |
| UELE | 700-mile river, tributary of the Ubangi. |
| UELE | 700-mile tributary of the Ubangi River. |
| NAPO | River in Ecuador, 550 miles from Cotopaxi Mt. to Amazon. |
