M2 Blue
Florida, USA
Measurements
| Length | Max depth | Entrances | Source | Date |
|---|---|---|---|---|
| 10,822 m | 50 m | Unknown | Cave-Exploring World Long Caves Secondary source Provided by: Andy Pitkin FB | 2022-01-01 |
Florida, USA
| Length | Max depth | Entrances | Source | Date |
|---|---|---|---|---|
| 10,822 m | 50 m | Unknown | Cave-Exploring World Long Caves Secondary source Provided by: Andy Pitkin FB | 2022-01-01 |