Réseau Félix Trombe
| Réseau Félix Trombe | |
|---|---|
| Location | Arbas, France |
| Coordinates | 42°58′00″N 0°51′30″E / 42.9665900°N 0.8583851°E |
| Depth | 1,001 m (3,284 ft) |
| Length | 126.343 km (78.51 mi) |
| Elevation | 1,476 m (4,843 ft) |
| Discovery | 1908 |
| Geology | limestone |
| Entrances | 61 |
The réseau Félix-Trombe or Coume Ouarnède is an underground karst network formed by a succession of wells and galleries dug into the limestone.
It is a mythical network for speleologists from all over the world. It takes its name from a famous French speleologist: Félix Trombe.