Get Antarctic Tears that talks about skiing Yellowstone in the winter: https://amzn.to/2Ef66rD
Aaron has skied across and through Yellowstone in -45 degree temperatures for several years. He knows what it’s like to be alone in the winter and dark and Yellowstone. The cold is incredibly brutal and there is animal danger in Yellowstone during the winter. It’s the best time to visit the park, too!