Caves
US - Lewis and Clark County
| Name | Length | Depth |
|---|---|---|
| Green Fork Falls-Kathys Icebox System Green Fork Falls Entrance | 6 km | 88 m |
| Green Fork Falls-Kathys Icebox System Kathy's Icebox Entrance | 6 km | 88 m |
| Campbell's Pool Cave | 646 m | 46 m |
| One More Day Cave | 305 m | 30 m |
| Ophir Cave | 243 m | 57 m |
| Cave Creek Cave Lower | 0 m | |
| Cave Creek Cave Upper | 0 m | |
| Pendulum Cave | 0 m | |
| Ramsey's Cave | 0 m | |
| Rat Shit Slit Cave | 0 m |