Burgos, Spain
Regional underwater cave survey reports.
| # | Cave | Location | Length | Source |
|---|---|---|---|---|
| 1 | Pozo Azul | Covanera, Burgos, Spain | 14,415 m | Cave-Exploring World Long Caves Secondary source Provided by: Jose Luis Membrado e-mail |
Regional underwater cave survey reports.
| # | Cave | Location | Length | Source |
|---|---|---|---|---|
| 1 | Pozo Azul | Covanera, Burgos, Spain | 14,415 m | Cave-Exploring World Long Caves Secondary source Provided by: Jose Luis Membrado e-mail |