Photo by Keith Ladzinski ladzinski / Professional climber Paige Claassen makes her way up a technically challenging stretch of rock in Colorado's Penitente Canyon. These basalt cliffs, formed some 30 million years ago, today are home to numerous climbing routes. The pictograph on the left is Our Lady of Guadalupe, said to have been painted in the 1940s by a visitor on a religious pilgrimage through the area.