During the Great War, 13 nuclear weapons hit the city in the span of seven minutes, destroying it entirely and leaving only craters, warped steel girders and mounds of bricks making up the remains of the city. The city was rebuilt by Mormons and became an integral part of New Canaan, with the Happy Trails Caravan Company having had a route to the city until it was sacked, along with the rest of New Canaan, by the White Legs. In 2281, the Salt Lake City area has a strong presence of Caesar's Legion and their servants, the White Legs.[verification overdue]
The following is based on the Fallout Bible and is not considered canon.