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Expedition starts from Camp Dubois
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First official cousel between representatives of United States and western Indians
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The expedition is now in the Great Plains and will describe 178 plants and 122 animals that previously had not been recorded for science
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Fort Mandan is completed and the expedition had moved in for the winter
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Lewis and Clark send about a dozen men back downriver with maps, reports, Indian artifacts, and boxes of specimens, and the rest of the crew heads west
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The expedition comes across the Great Falls of the Missouri
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Sacagawea tells Lewis and Clark that they are nearing the home of her people, the Shoshones
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The expedition goes into the Bitterroot Mountains, and almost die of starvation while going through them
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The crew votes where to spend the winter, and they set up Fort Clatsop near modern-day Astoria, Oregon
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The expedition splits up in order to explore more territory after re-crossing the Bitterroot Moutnains
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The expedition returns to the settlements and reach La Charette
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The expedition arrives at St. Louis and are welcomed back as national heroes