Yellowstone Critters Prepping for Annual Fall Show

When the elk start bugling -- a high-pitched keening sound you'll never forget once you've heard it -- and the bears are prowling for their last food feasts before they hibernate, Yellowstone is alive with activity. Sign up for a fall Lodging and Learning Program, which includes day-trips with rangers and overnights at the Mammoth Hot Springs Hotel. If you're in the country's first national park's neighborhood, you can also sign up for a one-day "Picture Perfect Photo Safari" of Yellowstone.