The original is in the Vatican in Rome, in St. Peter's Basilica. Michelangelo completed it when he was 24 years old. This replica is made of the same marble as the original, and weighs 6400 pounds. It was made in Italy by a famous Italian sculptor and is one of only two known replicas in the U.S.
Viewing hours are 9am-4pm on weekdays, and Sundays between services. You can just walk in and take a look. If you want, you can call 801.486.5473 and ask for a docent to tell you more about it while you're there.