When you think of soaring arches carved out of red sandstone, Utah likely comes to mind. But right across the border in Colorado is a lesser-known, yet similarly impressive sight: 35 natural arches ...

Rattlesnake Canyon cleaves the north flank of the Uncompahgre Plateau, plummeting 2,000 feet to the Colorado River at Horsethief Canyon. Rattlesnake contains one of the largest concentrations of ...

Tucked away in a remote Colorado canyon is the world's second-largest collection of natural arches — and very few people even realize that it's there. Rattlesnake Canyon includes 35 natural arches, ...

BOULDER, Colo. (CBS4)- The Royal Arch Trail is once again open for hikers. The City of Boulder reopened the popular open space trail after significant maintenance and reconstruction work. The popular ...