What if the Mormons never formed? Maybe Joseph Smith isn't born or the Second Great Awakening never happens. What would Utah be like today? What other effects would there be?
Well, that young forger wouldn't have 'muddied the waters' by 'discovering' umpteen letters, memos etc exchanged between their founders...
And, Nixon's Mormon CREEPs might be butterflied away, so a very different Watergate...
And, yes, perhaps no 'Salt Lake City' ? It is almost as daft a place to build as Vegas...