| Answer | Crossword Clue |
|---|---|
| ALABAMABORDER | The Chattahoochee River forms part of it |
| ALA | The Chattahoochee R. forms part of its border |
| FLA | The Chattahoochee R. forms part of its border |
| ONTARIO | The Detroit River forms part of its border |
| DEE | River that forms part of the England-Wales boundary |
| PERU | The Putumayo River forms part of its northern border |
| IOWA | The Big Sioux River forms part of its border |
| NEISSE | River that forms part of the border between Germany and Poland |
