Yellowstone still evokes awe in even the most blasé tourist. From Old Faithful and the Upper Falls to the herds of buffalo and elk, the elusive wolf packs, the grizzlies and the moose, a visit to Yellowstone is the great American safari. Come in early September, when the RVs head home, and take at least one ranger-led hike.
Yellowstone National Park is a U.S. National Park located in the western states of Wyoming, Montana, and Idaho. Yellowstone is the first national park established in the world and covers 3,472 square miles (8,987 km²), mostly in the northwest corner of Wyoming. The park is famous for its various geysers, hot springs, supervolcano and other geothermal features and is home to grizzly bears, wolves, and free-ranging herds of bison and elk. It is the core of the Greater Yellowstone Ecosystem, one of the largest intact temperate zone ecosystems remaining on the planet. The world's most famous geyser, the Old Faithful Geyser, is also located in Yellowstone National Park.