Caves
US - Niagara County
| Name | Length | Depth |
|---|---|---|
| Milk System Gorge Cave Entrance | 731 m | 0 m |
| Milk System Milk Cave Entrance | 731 m | 0 m |
| Milk System Salamander Cave Entrances | 731 m | 0 m |
| Thrall Hill Cave | 30 m | 0 m |
| Devil's Hole Cave | 13 m | 0 m |
| Talus Cave | 11 m | 0 m |
| Driftwood Cave | 9 m | 0 m |
| Rock of Ages Cave | 6 m | 0 m |
| Ensmingers Cave | 5 m | 0 m |
| Lockport Caves | 0 m |