| RHODOPE | The --- Mountains, range extending along the border between Bulgaria and Greece (7) |
| URAL | - Mountains; range extending some 1,550 miles through westcentral Russia, considered the traditional geographical boundary between Europe and Asia (4) |
| CHEVIOTHILLS | Range extending along part of the border between England and Scotland that lies mainly in Northumberland (7,5) |
| EURO | Currency whose spelling was the subject of a dispute between Bulgaria and the ECB |
| THRACE | Balkan region divided between Bulgaria, Greece and Turkey (6) |
| BRENNER | The ... Pass is an opening through the Tyrolean Alps along the border between Italy and Austria (7) |
| SUDETEN | The --- Mountains are a range along the borders of Poland and the Czech Republic (7) |
| MARCHES | Walks resolutely along the borders (7) |
| BALKAN | --- Mountains, mountain range extending across Bulgaria from the Black Sea to the Western border (6) |
| PYRENEES | The _, mountain range along the border between France and Spain (8) |
| PASS | Opening through the Alps south of Innsbruck along the border between Italy and Austria (7,4) |
| LAKEKARIBA | The world's largest artificial lake and reservoir by volume, along the border between Zambia and Zimbabwe (4,6) |
| BRENNERPASS | Opening through the Alps south of Innsbruck along the border between Italy and Austria |
| THEPYRENEES | Mountain range along the border between France and Spain (3,8) |
| RIOGRANDE | River which runs along the border between the USA and Mexico (3,6) |
| WADDEN | ? Sea, area extending along the North Sea coasts of The Netherlands, Germany and Denmark |
| DYKE | Offa's ___ runs along the border between England and Wales. (4) |
| TAMAR | River that runs along the border between Devon and Cornwall (5) |
| ALPS | Europe's largest mountain range, extending approximately 750 mi (1,200 km) across the continent (4) |
| ANDES | Major mountain system extending along the entire Western edge of South America (5) |
