Theres no shortage of pristine areas in Colorado. Our mountain ranges, rivers and canyons rank high among the very best of wilderness destinations. Perhaps the most spectacular, untouched, mind-bending wilderness of all, however, lies under our very feet. It is an unspoiled wilderness saturated in lore, secret passwords and gate-keepers. Welcome to the underground world, literally and figuratively, of Colorado caves.

Pete Tschannen, keeper of privileged information, leads the way
to a locked entrance gate. Cave pearls growing in a small pool. These aragonite crystals have formed into a prismatic 7-foot
tall bush. Pete Tschannen, of Durango, illuminates a beautiful
formation. Aragonite, left, and gypsum, right, are some of the more common
minerals found in caves. Mariah Eldrid, of Durango, sneaks past an ancient pillar. Caves are in a perpetual state of growth. The room seen here is
literally alive with marmalade flowstone and stalactites.

 

In this week's issue...

December 18, 2025
Let it snow

Although ski areas across the West have taken a hit, there’s still hope 

December 18, 2025
Look, but don't take

Lessons in pottery theft – and remorse – from SW Colorado

December 11, 2025
Big plans

Whole Foods, 270 apartments could be coming to Durango Mall parcel