The Oregon Trail chronicles the travels of Francis Parkman up the Oregon Trail as he records his observations of the Pawnee and Oglala Sioux. For 6 months he lived among the natives, and even accompanied them on buffalo hunts. Along the way he also recorded an authentic record of frontier life, including eyewitness accounts of the trappers, Mormons, outlaws, pioneers and various adventurers who tried to tame the Wild West.