News Release: The winter season begins in Yellowstone National Park Wednesday, Dec. 15, and most park roads will open to oversnow vehicles. Due to limited snow, travel will be restricted to snowcoaches until conditions improve. Annually from mid-December until mid-March, visitors travel most of the park’s roads by commercially guided snowmobiles and snowcoaches, and via the non-commercially guided snowmobile program. Learn more about visiting the park in winter, as well as our top 10 tips for pl

Scientists have made an important discovery inside the super volcano deep underground at Yellowstone National Park, nearly 2.5 miles down, they found a magma cap which releases pressure and reduces the chances of a tremendous eruption. | CBS Evening News