Tvarditsa Valley | |
|---|---|
 Partial view of the valley | |
| Coordinates: 42°40′4″N 25°58′52″E / 42.66778°N 25.98111°E | |
| Location | Bulgaria |
| Area | |
| • Total | 287 km2 (111 sq mi) |
| Dimensions | |
| • Length | 34 km (21 mi) |
| • Width | 6 km (3.7 mi) |
Tvarditsa Valley (Bulgarian: Твърдишка котловина) is situated in central Bulgaria. It is named after the town of Tvarditsa, its main settlement. It is the eighth of the eleven Sub-Balkan valleys in direction west–east.