Welcome to Penitente Canyon

Some 27 million years ago, one of the largest volcanic explosions in earth's history ejected an unimaginable 1000 cubic miles of ash that over time became the rock formations you see today. After the eruption the underground chamber collapsed, forming the caldera (22 miles wide by 47 miles long!) west of Penitente, where these ancient ash formations and volcanic plugs rise like spires in a haunting landscape.

Top experiences in Penitente Canyon