Sub-Balkan valleys

The Sub-Balkan valleys (Bulgarian: Подбалкански Котловини) of Bulgaria are located between Stara Planina, Vitosha and Sredna Gora. There is great abundance of mineral waters, the most notable spas being Bankya, Sofia, Banya, Pavel Banya, Sliven Mineral Baths, Aitos. They are divided into two parts: western (higher) and eastern (lower). The western valleys include:

• Burel Valley
• Sofia Valley
• Sarantsi Valley
• Kamartsi Valley

The eastern valleys are:

• Zlatitsa Valley
• Karlovo Valley
• Kazanlak Valley (better known as the Rose Valley)
• Tvarditsa Valley
• Sliven Valley
• Karnobat Valley
• Aytos Valley