 In early 1857 the 5th moved to south Florida, where they spent several months skirmishing with Seminoles in the area around Fort Myers.The 5th left Florida in June for Fort Laramie in modern-day Wyoming, where they took part in the Buchanan administration's expedition against the Mormons.The regiment stayed at Camp Floyd (later Fort Crittenden) in the Great Salt Lake valley until the autumn of 1860, when it moved to New Mexico for operations against the Navajos.