Ouray Ice Park is one of Colorado’s coolest attractions. For a few months each year, the expansive public area is open to any ice climber gutsy enough to grab an axe. But you wouldn’t recognize the park in the summer.

From spring to late autumn every year, the walls of Uncompahgre Gorge are plain rock. But come November, the craggy surfaces are transformed into a picturesque ice palace by a team of dedicated men and women who call themselves the ice farmers.

The walls of ice may look accidental, but they’re actually the product of a lot of hard work. In this video from Great Big Story, ice farmer Xander Bianchi explains how the artificial wonderland is created.

Header image from YouTube // Great Big Story