Yellowstone National Park

Location     Park County, Wyoming
Teton County, Wyoming
Gallatin County, Montana
Park County, Montana
Fremont County, Idaho
Coordinates     44°36′N 110°30′WCoordinates: 44°36′N 110°30′W
Area     2,219,791 acres (898,318 ha)
Established     March 1, 1872
Visitors     3,394,326 (in 2011)
Governing body     U.S. National Park Service

Yellowstone National Park (Arapaho: Henihco'oo' or Héetíhco'oo), established by the U.S. Congress and signed into law by President Ulysses S. Grant on March 1, 1872,is a national park located primarily in the U.S. state of Wyoming, although it also extends into Montana and Idaho. Yellowstone, widely held to be the first national park in the world,is known for its wildlife and its many geothermal features, especially Old Faithful Geyser, one of the most popular features in the park.It has many types of ecosystems, but the subalpine forest is dominant.

Yellowstone National Park is a prestigious tourist attraction. The beginning of the 20th century, an American explorer once described the Yellowstone National Park: "in different countries, regardless of the scenery, vegetation, how great the difference, but Mother Earth is always as familiar, friendly, eternal., But here, the earth has changed so much, as if this is a place to belong to another world. ... Earth here as if in a test of his endless creativity. "

It is a hotbed of geothermal activity, there are over ten thousand geothermal style characteristics; Rockies to the territory created numerous beautiful mountains, rivers, waterfalls, canyons, limestone structure, letting the earth add a beautiful and varied colors; the numerous wildlife assigns its perennial life, here is a the Wyoming herd's hometown, but also land the largest in North America and around the world, the widest variety of mammals habitat.