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 ...