| Answer | Crossword Clue |
|---|---|
| ARCED | Like Delaware's northern border |
| ARC | Delaware's northern border, e.g. |
| OHIORIVER | Kentucky's northern border |
| RIOGRANDE | Northern border of Chihuahua |
| POTOMACRIVER | Northern border of Dixie |
| ERIE | Lake on Ohio's northern border |
| ERIE | Lake on our northern border |
| SURINAM | Republic on Brazil's northern border |
| ERIE | Part of Ohio's northern border |
| YALU | River on Korea's northern border. |
| DEL | St. with an arc-shaped northern border |
| OREGON | The Columbia River forms much of its northern border |
| ORE | The Columbia R. forms much of its northern border |
| PERU | The Putumayo River forms part of its northern border |
| IDAHO | Its southern border is about seven times longer than its northern one |
