Yellowstone is actually in three states. The majority of the Park (96%) is in Wyoming. A small section of the Park (3%) to the north and northwest is in Montana. And a small section of the Park (1%) to the west is in Idaho.
Yellowstone National Park was established by the U.S. Congress and signed into law by President Ulysses S. Grant on March 1, 1872.
Yellowstone was authorized to increase its entrance fee and retain 80% of the fee for park projects.
More than 3 million people visited the park last year.
It is made up of geothermal features like geysers, as well as mountains, lakes, canyons and rivers. The Yellowstone area also features many different types of plants and animals. Rivers and lakes make up 5% of the park's land area. The remainder of the park is covered by forest and a small percentage of grassland.
Yellowstone National Park is a nearly 3,500-sq.-mile wilderness recreation area atop a volcanic hot spot
The winter average high is 62 degrees F and the winter average low is 1 degrees. The summer average high is 72 degrees F and the winter average low is 48 degrees F.
There are bears, wolves, foxes, elk, moose, bison, badgers and otters. With several rodents, fish and birds.