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The Definitive Journals of Lewis and Clark, Vol 4: From Fort Mandan to Three Forks

Since the time of Columbus, explorers dreamed of a water passage across the North American continent. President Thomas Jefferson shared this dream. He conceived the Corps of Discovery to travel up the Missouri River to the Rocky Mountains and westward along possible river routes to the Pacific Ocean. Meriwether Lewis and William Clark led this expedition of 1804–6. Along the way they filled hundreds of notebook pages with observations of the geography, Indian tribes, and natural history of the trans-Mississippi West. In April 1805 Lewis and Clark and their party set out from Fort Mandan following the Missouri River westward. This volume recounts their travels through country never before explored by white people. With new personnel, including the Shoshone Indian woman Sacagawea, her husband Toussaint Charbonneau, and their baby, nicknamed Pomp, the party spent the rest of the spring and early summer toiling up the Missouri. Along the way they portaged the difficult Great Falls, encountered grizzly bears, cataloged new species of plants and animals, and mapped rivers and streams.

464 pages, Paperback

First published October 1, 1987

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Meriwether Lewis

317 books31 followers
Meriwether Lewis was an American explorer, soldier, and public administrator, best known for his role as the leader of the Lewis and Clark Expedition also known as the Corps of Discovery, with William Clark, whose mission was to explore the territory of the Louisiana Purchase.

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Profile Image for Kandrea Cheney.
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August 8, 2025
My husband and I are embarking on this journey with Lewis & Clark, learning about their exploration and discoveries of our land. We read each daily entry that these famous men wrote on the same calendar day as they wrote each of their journal entries.
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