Documentary | 31 January 2001

High in the wild heart of the American Rockies, Yellowstone is a place of extraordinary landscapes and geysers. Created by the largest volcanic explosions in the planet's history, Yellowstone became the world's first national park in the late 1870s. Now that the wolves have been returned to the park, Yellowstone has become an unparalleled wildlife sanctuary and perhaps the best place on the planet to see wolves and grizzly bears hunting elk.