Fallout: Mile High
The town of New Canaan was founded in a ruined section of Ogden, Utah, by the Prophet Judah Black in 2235. The settlers of the town came from the ruins of New Jerusalem in Salt Lake City, the ruined utopia of pre-War Mormon optimism. Some great catastrophe befell New Jerusalem, possibly due to the insistence of its citizens on not dealing with the outside world.
By 2281, New Canaan was a prosperous town and a powerful trading influence in the southwest, dominating the trade routes north of New Vegas, imposing heavy taxes on exterior caravan companies wishing to trade, such as the Crimson Caravan, making NCR expansion in the area difficult.