The Wyoming Sojourn of the Utah Expedition, 1857-1858
Annals of Wyoming
In 1857 newly elected president James Buchanan decided to replace Brigham Young with Alfred Cumming as the governor of Utah Territory. Utah was deemed in a state of rebellion because of Young's alleged theocracy, and Buchanan ordered General Winfield Scott to lead an expedition of 2,500 troops into Utah from Wyoming Territory to enforce Cumming's takeover as governor. Young's resistance and aggression from Mormon guerrilla leader Lot Smith forced the troops to winter in Wyoming. Young finally ceded to Cumming in June 1858.