Caves
US - Terrell County
| Name | Length | Depth |
|---|---|---|
| Sorcerer's Cave | 3 km | 174 m |
| Blackstone Cave | 183 m | 12 m |
| Montgomery Gypsum Cave | 127 m | 65 m |
| Longley Cave | 98 m | 9 m |
| Pasotex Pit | 80 m | 44 m |
| Dryden Cave | 61 m | 23 m |
| Deaton's Cave | 24 m | 17 m |
| Goode Cave | 6 m | 8 m |
| Isinglass Sink | 0 m | 8 m |
| Brown Pit | 0 m | 6 m |
| Apprentice Cave | 0 m |