Lewis and Clark

Lewis and Clark. Lewis & Clark. Lewis and Clark. Discovering Lewis & Clark Home. Lewis and Clark Expedition. The Lewis and Clark Expedition, also known as the Corps of Discovery Expedition, was the first American expedition to cross what is now the western portion of the United States, departing in May, 1804, from near St.

Louis on the Mississippi River, making their way westward through the continental divide to the Pacific coast. The campaign's secondary objectives were scientific and economic: to study the area's plants, animal life, and geography, and establish trade with local Indian tribes. Lewis & Clark. The Library of Congress. The Learning Page - Lewis and Clark. The Library of Congress offers classroom materials and professional development to help teachers effectively use primary sources from the Library's vast digital collections in their teaching.

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