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The Lewis and Clark expedition started on its voyage. They started going up the Missouri River in a big keelboat and two small piroques.
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Lewis and Clark held their first council with Indians in Iowa. They met with Oto and Missouri chiefs.
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Lewis and Clark decided to begin building Fort Mandan across the Missouri River from the Indian Villages.
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Lewis just sees the Rocky Mountains for the first time.
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lewis goes ahead of the groups and finds the Great Fals of the Missouri River.