NAT GEO SECRET YELLOWSTONE DVD

Movie Description:
Discover spectacular backcountry wondersunseen by tourists as you venture off the beaten track to experience the extraordinary hidden wilderness ofYellowstone National Park. Witness towering, newly mapped waterfalls; rarely seen predator behavior by wolves and grizzly bears; and ecologicalmysteries found only in this uniquely challenging environment. Probe the vast molten magma chamber that underlies the park and powers its incredible arrayof explosive geysers, seething mud pots and toxic gas vents. Featuring striking satellite imagery and dynamic computer generated animation.