| Answer | Crossword Clue |
|---|---|
| MASSIF | Mountain range's backbone |
| APENNINES | Italy's mountain backbone. |
| MASSIF | Backbone of a mountain range |
| SIERRAS | Mountain ranges |
| SIERRAS | Mountain ranges. |
| SIERRAS | Rugged mountain ranges |
| ALPS | European mountain ranges |
| ALAIS | Kirghiz mountain ranges. |
| SIERRAS | Jagged mountain ranges |
| SIERRAS | Western mountain ranges. |
| SIERRAS | Sharply pointed mountain ranges |
| GHATS | Mountain ranges of India. |
| CORDILLERA | Group of mountain ranges |
| GHATS | Mountain ranges of southern India. |
| GHATS | Converging mountain ranges of India |
| NEVADA | State with the most mountain ranges |
| GHATS | Either of two Indian mountain ranges |
