| Nr. | Region | Countries | Action |
|---|---|---|---|
| 1 | Belasitsa Mountain | Bulgaria , Greece , Macedonia | Show localities |
| 2 | Central Balkan Mountain | Bulgaria | Show localities |
| 3 | Danubian Plain | Bulgaria | Show localities |
| 4 | Dervent | Bulgaria , Turkey | Show localities |
| 5 | Eastern Balkan Mountain | Bulgaria | Show localities |
| 6 | Eastern Rhodope Mountain | Bulgaria , Greece | Show localities |
| 7 | Kraishte | Bulgaria , Serbia | Show localities |
| 8 | Kresna Gorge | Bulgaria | Show localities |
| 9 | Lozen Mountain | Bulgaria | Show localities |
| 10 | Lyulin Mountain | Bulgaria | Show localities |
| 11 | Maleshevska Mountain | Bulgaria , Macedonia | Show localities |
| 12 | Ograzhden Mountain | Bulgaria , Macedonia | Show localities |
| 13 | Osogovo Mountain | Bulgaria , Macedonia | Show localities |
| 14 | Pirin Mountain | Bulgaria | Show localities |
| 15 | Plana Mountain | Bulgaria | Show localities |
| 16 | Rila Mountain | Bulgaria | Show localities |
| 17 | Ruy Mountain | Bulgaria , Serbia | Show localities |
| 18 | Sakar Mountain | Bulgaria , Turkey | Show localities |
| 19 | Sandanski-Petrich Valley | Bulgaria | Show localities |
| 20 | Slavianka Mountain | Bulgaria , Greece | Show localities |
| 21 | Sofia Kettle | Bulgaria | Show localities |
| 22 | South Dobrudzha | Bulgaria | Show localities |
| 23 | Sredna Gora Mountain | Bulgaria | Show localities |
| 24 | Strandzha Mountain | Bulgaria , Turkey | Show localities |
| 25 | Upper Thracian Plain | Bulgaria | Show localities |
| 26 | Vitosha Mountain | Bulgaria | Show localities |
| 27 | Western Balkan Mountain | Bulgaria , Serbia | Show localities |
| 28 | Western Rhodope Mountain | Bulgaria , Greece | Show localities |