This book retraces Sacajawea's path across the Northwest, from the Mandan Indian villages in present-day South Dakota to the Pacific Ocean, and back. On the journey Sacajawea was accompanied by her ne'er-do-well French-Canadian husband, Toussaint Charboneau, and her infant son, Baptiste, who became a favorite of the members of the expedition, especially Captain William Clark.
The author presents a colorful account of Sacajawea's journeys with Lewis and Clark and an objective evaluation of the controversial accounts of her later years.