If it had not been for President Thomas Jefferson, Sacagawea would have lived out her life in the wilderness as the unknown Shoshone wife of a French-Canadian fur trapper. But in 1803 Jefferson ordered Meriwether Lewis and William Clark to find a route from St. Louis to the Pacific Ocean, and to gather information about the Indians they encountered. In a village on the Missouri River, Lewis and Clark met Sacagawea, the young woman who would travel with them on their historic Journey of Discovery.

With her husband and her infant son, Sacagawea accompanied Lewis and Clark's Corps of Discovery as they braved rapids, blizzards, hunger, illness, grizzly bears and hostile Indians. She found them roots and berries to eat, helped them negotiate for horses, and explained their peaceful intentions to the tribes they met along the way. When they finally reached the Pacific, Sacagawea shared in their triumph.

Using the journals of Lewis, Clark and other members of the expedition, award-winning author Judith St. George brings to life the story of this remarkable woman and her contribution to one of America's great journeys of exploration.