the way they met a young Shoshone woman who would make an invaluable contribution to the expedition. With a baby strapped on her back, Sacagawea negotiated with native peoples, helped the expedition survive when food was scarce, and, ultimately, contributed to leading this small band of intruders on a trip lasting more than two years through the Indian land to the Pacific Ocean. One summer, Peter Lourie and his family traveled in the footsteps of Sacagawea to learn about her from the native peoples who now live along her trail. As the Louries traveled the historic route, they grew closer to American history and to understanding the woman who contributed so much to the early expansion of the United States.

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