From the Plains to the Pacific
Between May 1804 and September 1806, 31 men, one woman, and a baby traveled from the plains of the Midwest to the shores of the Pacific Ocean. They called themselves the Corps of Discovery. In their search for a water route to the Pacific Ocean, they opened a window into the west for the young United States.
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Who Were They?
William Clark, Sacagawea, York, Thomas Jefferson - names forever linked by a journey to the Pacific Ocean. Who were the people behind these names?
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Explore the Trail
The Trail winds over mountains, along rivers, through plains and high deserts, and extends to the wave-lapped Pacific coast. Experience the diversity.
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Trail News
The Trail Companion is our way of celebrating the great work of Trail partners and stewards. It also is a way for Trail staff to share resources.
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Helping Partners
The Trail is committed to building true relations with all people, to learn from them, and to tell their stories with sensitivity and respect.
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Did You Know?
For 200 years, the Expedition journals have been the source for knowledge and understanding of the Corps of Discovery. There are, however, more than 50 tribes whose oral histories also record the events and people of the Corps.