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The Corps of Discovery leaves Camp Wood and begins its journey up the Missouri River "under a gentle breeze."
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The Corps holds the first Independence Day celebration west of the Mississippi River.
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Sergeant Charles Floyd dies of natural causes near present-day Sioux City, Iowa; he will be the only fatality among the Corps of Discovery during the expedition.
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The Corps reaches the White Cliffs region of the Missouri River.
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The Corps reaches an unknown fork in the Missouri and must determine which branch to choose.
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http://www.nationalgeographic.com/lewisandclark/resources_timeline_1805.htmlJefferson receives the shipment from Fort Mandan; Lewis finds the headwaters of the Missouri River, then crosses the Continental Divide and Lemhi Pass to discover that there is no Northwest Passage.
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Lewis' celebrates his 31st birthday and vows "in future, to live for mankind as I have heretofore lived only for myself."
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North of present-day Omaha, Nebraska, the Corps holds a council with the Oto and Missouri Indians.
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The Corps holds a council with the Yankton Sioux at present-day Yankton, South Dakota.
