Twelve thousand people used this route to settle in the Columbia River Valley.
A book about a journey on this route was the first bestseller for popular historian Francis Parkman. Marcus Whitman led the "great migration" along this route. Landmarks on this route included Fort Bridger, Fort Hall, and Soda Springs. Twelve thousand people used this route to settle in the Columbia River Valley. This route started at Independence, Missouri and moved westward through Kansas, Nebraska, and Wyoming, where it shared stretches with the Mormon Trail. For 10 points, identify this settler route to a namesake Western U.S. territory.
A book about a journey on this route was the first bestseller for popular historian Francis Parkman.
{Oregon Trail}