Yellowstone National Park (Arapaho: Henihco'oo or Héetíhco'oo) 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 most abundant. It is part of the South Central Rockies forests ecoregion.
Waterfalls – Yellowstone has more than 350 waterfalls, with the tallest reaching an astounding 1,200 feet. Waterfalls are heavily concentrated in the southwest and northeast regions of the park; however, more than 80-percent of the park’s waterfalls are not visible from trails or roads.
