Map shows trail route from Independence, Missouri (and also St. Joseph) to Sacramento, California across the "political divisions of the Great West": Missouri, Kansas, Nebraska, South Dakota, Wyoming, Colorado, Idaho, Utah, Oregon, California, and Nevada, landmarks and areas of Indian habitation. Includes note describing area and history of the route. Inset: United States west of Mississippi River showing political divisions in 1849. Relief shown by hachures. Scale not given.

Map shows geographical features and daily progress along the route taken by Mormon pioneers from Nauvoo to Great Salt Lake from 1846 to 1847. Pictorial map and not drawn to scale.