There have been two episodes where they attempt to represent the LDS people. However there is a clear lack of understanding of the religion and the people. It's a shame as they. Could have enhanced the series so much more had they done even 10 minutes of research.
The LDS people where very much in support of the rail roads. They onany cases offered up their land so it could be built. They are shown in this series to be zolots and trigger happy nut cases.
Outside of that,the series is very well done and is intriguing. The side stories and main plot tie in well, and the way the characters grow, in most cases make sense. It's well worth the time to watch.