| Colorado’s Longest Caves | County | Length (miles) | Length (kilometers) |
|---|---|---|---|
| Groaning Cave | Garfield | 11.154 | 17.947 |
| Fixin’-To-Die Cave | Garfield | 4.250 | 6.838 |
| Fairy Cave/Glenwood Caverns | Garfield | 3.090 | 4.972 |
| Premonition Cave | Garfield | 2.366 | 3.807 |
| Cave of the Winds System | El Paso | 2.150 | 3.459 |
| Spring Cave | Rio Blanco | 1.679 | 2.702 |
| Breezeway Cave | El Paso | 1.298 | 2.088 |
| Hubbard’s Cave | Garfield | 1.220 | 1.963 |
| Spanish Cave | Custer | 1.090 | 1.754 |
| Twenty Pound Tick Cave | Garfield | 1.084 | 1.744 |
| Huccacove (Hucacode) Cave | El Paso | 1.020 | 1.641 |
| Fulford Cave | Eagle | 1.005 | 1.617 |
| Colorado’s Deepest Caves | County | Depth (feet) | Depth (meters) |
|---|---|---|---|
| Spanish Cave | Custer | 741 | 225.9 |
| Hurricane Cave (talus) | El Paso | 553 | 168.6 |
| Twenty Pound Tick Cave | Garfield | 469 | 143.0 |
| Devil’s Den Cave | Eagle | 368 | 112.2 |
| Cave of the Winds System | El Paso | 294 | 89.6 |
| Fixin’-To-Die Cave | Garfield | 266 | 81.1 |
| Breezeway Cave | El Paso | 243 | 74.1 |
| Fairy Cave/Glenwood Caverns | Garfield | 200 | 61.0 |
| Huccacove (Hucacode) Cave | El Paso | 200 | 61.0 |