The Ashley National Forest offers some of Utah’s most remote wild lands and scenic fall hikes. Check out a hike at Spirit Lake for inspiration. Deer Lake, near Yellowstone Canyon, is another option.

could fill the 1,000-cubic-mile Grand Canyon as much as 11.2 times over. "For the first time, we have imaged the continuous volcanic plumbing system under Yellowstone," University of Utah's Hsin ...

The Grand Canyon of the Yellowstone is a natural wonder that almost defies description. The reaction of explorer Charles Cook when he first viewed the canyon in 1869 seems appropriate ...