The soft light of twilight baths the badlands of the Book Cliffs along the northern edge of Colorado's Grand Valley. The cliffs...

Twilight on the Book Cliffs

Book Cliffs

The soft light of twilight baths the badlands of the Book Cliffs along the northern edge of Colorado's Grand Valley. The cliffs were named by John Wesley Powell on his second trip exploring the Colorado River. Photo © copyright by Chris Eaton.