I really like going to Yellowstone National Park, i like hiking there its located in Wyoming, Montana and Idaho so its large
wow that sounds cool. ive never gone hiking. how big is the park?
Its the first national park in the US, and in the world, its one of the largest also, 
when was it established?
It was established in 1872, by the US Congress and signed into law by president Ulysses S. Grant
is it open to the public for free or do you have to pay to get in?
Yellowstone National Park
Yellowstone National Park is an American national park located in Wyoming, 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 was the first national park in the U.S. and is also widely held to be the first national park in the world. The park is known for its wildlife and its many geothermal features, especially Old Faithful geyser, one of its most popular features. It has many types of ecosystems,
List of mountains and mountain ranges of Yellowstone National Park
Yellowstone National Park, located primarily in the U.S. state of Wyoming, though the park also extends into Montana and Idaho and its Mountains and Mountain Ranges are part of the Rocky Mountains. There are at least 70 named mountain peaks over in Yellowstone in four mountain ranges. Two of the ranges—The Washburn Range and the Red Mountains—are minor and completely enclosed within park boundaries. The other two ranges are major, multi-state ranges that extend far beyond the