Yellowstone National Park

Yellowstone National Park

The united states congress established Yellowstone national park on March 1, 1872
Became an Act into law and then became the world's first national park. Yellowstone national park is located on the north west corner of  Wyoming, and also includes small areas of Montana and Idaho. Protecting this park was important because air pollution is among the most serious threats to the monument and the park itself. The world's famous wolves, buffalos, and grizzly bears of greater Yellowstone are threatened by development, habitats loss and in case of wolves widespread killing. The human history of the Yellowstone region goes back more than 11,000 years. About 11,000 years ago many groups of native Americans used the park as their homes, hunting grounds, and as well as transportation routes. Yellowstone national park is the home for some 10,000 thermal features, and over 500 are geysers. Yellowstone contains the majority of the world's geysers. Geysers are hot springs that erupt periodically, the eruptions is the result of superheated water below ground becoming trapped in channels leading to the surface.