| Answer | Crossword Clue |
|---|---|
| REDSEA | Eritrea's eastern border |
| REDSEA | Part of Eritrea's border |
| ANDES | Chile's eastern border. |
| URALS | Europe's eastern border |
| LAKEMICHIGAN | 40-Across's eastern border |
| ATL | Eastern seaboard border (abbr.) |
| URALS | Eastern border of Europe |
| ODER | River, Germany's new eastern border. |
| URALS | Range forming Europe's eastern border |
| ELBE | Onetime eastern border of Charlemagne's empire |
| ODER | River forming part of Germany's eastern border |
| NEB | The Missouri R. forms its eastern border |
| AVENUEB | Eastern border of Manhattan's Tompkins Square Park |
| ELBE | River forming the eastern border of Charlemagne's empire |
