Established in 1872, Yellowstone National Park is the oldest national park in the world. Covering 8,983 km², it is larger than Corsica!It lies mainly in Wyoming, extending also into Montana and Idaho.Yellowstone is renowned for its lakes, canyons, rivers, mountains and geothermal phenomena, notably Old Faithful Geyser. It holds two-thirds of the planet's geysers, along with numerous hot ...