Yellowstone National Park is
a national park located primarily in the U.S. state of Wyoming, although it
also extends into Montana and Idaho. It was established by the
U.S. Congress and signed into law by President Ulysses S. Grant on March
1, 1872. 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. It is part of the
South Central
