Martrou
Caves mentioning the terme "martrou"
| Name | Location | Length (m) | Depth (m) |
|---|---|---|---|
| Martrou (Gouffre) | Hautes-Pyrénées - FR | 440 | 126 |
| Saint-Clément (Barrenc de) | Aude - FR | 200 | 160 |
| Grande Combe (Aven de la) | Aude - FR | 350 | 185 |
| Serre de Roquefort (Barran de la) | Aude - FR | 2500 | 465 |