List of Areas
| Index | Abbreviation | Name | Caves | Notes | |
|---|---|---|---|---|---|
| 1 | VA | Valdominguero | 80 | ||
| 2 | CS | Cueto de los Senderos | 49 | ||
| 3 | VS | Vegas de Sotres | 13 | ||
| 4 | PB | Pico Boro | 46 | ||
| 5 | HO | Hoyo Oscuro | 45 | ||
| 6 | SC | San Carlos | 24 | ||
| 9 | S | Samelar | 74 | ||
| 10 | VL | Vao de Lobos | 53 | ||
| 13 | T | Tresviso | 86 | ||
| 15 | AN | Vegas de Andara | 91 | Sara Depression | |
| 16 | MM | Mazarrasa Mines | 188 | includes White House | |
| 17 | SI | Sierra del a Corta | 97 | includes Sierra del a Corta, La Gobia | |
| 18 | SV | Sobra Valley | 47 | ||
| 19 | IC | Invernales de la Caballar | 49 | ||
| 20 | VE | Valdediezma | 56 | ||
| 24 | B | Bejes | 48 | ||
| 26 | U | Unknown | 25 | ||
| 28 | HE | Hoya Evangelista | 16 | ||
| 29 | OT | Other | 14 | ||
| 30 | PO | Portudera | 77 | Tielve, north to Cabrales | |
| 31 | OC | Oceno | 44 | Oceno south to Tajadura | |
| 32 | HM | La Hermida | 1 | La Hermida and San Esteban | |
| 1223 caves recorded | |||||