Addendum: Utah is also home to the best powder skiing and snowboarding in the United States, possibly the world. This is due to the "lake effect", a phenomenan in which moisture from the Great Salt Lake causes the snow in nearby Big and Little Cottonwood Canyons to be exceptionally light and powdery (I'm not a meterologist, so I couldn't explain exactly how it works). Because of it's great winter sports conditions, Utah was chosen to host the 2002 Winter Olympics.
Utah is also famous for rock climbing, river rafting, hiking, hunting, fishing, and other outdoor activities. Utah is also home to the world-famous Slickrock Trail for mountain biking, the Sundance Film Festival which attracts filmmakers from around the world, and the Bonneville Salt Flats where racers routinely break the world land speed record. But mostly it's known for being a big state with lots of Mormons.
(Yes, I'm from Utah and yes, I'm a mormon

)