| name | discoverer | image | geology | type | Area (m²) | elevation (m) | Range | date discovered | Depth (m) | Height (m) | city | Website | administrative división | continent | Country | latitude (°) | Width (m) | Length (m) | longitude (°) | Map |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Gruta do Carvão | Volcanic | 0 | Ponta Delgada | website | Azores | Europe | Portugal | 37.7333335876 | 1,650 | -25.6833324432 | Map |