View images of tourists and wildlife taken at Yellowstone National Park. In 1872, Yellowstone became the first National Park in the world. Located in the state of Wyoming, with parts stretching into Montana and Idaho, it boasts two million miles of remote terrain. Yellowstone has mountain ranges, deep canyons, rock formations, rivers and lakes, diverse wildlife, and geothermal activity in the form of sulphur springs and geysers. Theodore Roosevelt fought to protect the Park from poachers and vandals. Photographers like Ansel Adams, presidents like Franklin D. Roosevelt, and biologists like George Melendez Wright were drawn to its unearthly beauty.