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This geographic data file presents line data for 31 segments of the Lewis & Clark's expedition route. These reflect important starting and stopping locations as well as sites where key expedition events occurred.
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This geographic data file presents point data for 35 key sites along Lewis & Clark's expedition route. These reflect important starting and stopping locations as well as sites where key expedition events occurred.
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This geographic data file presents point data for five key mountain passes on the Lewis & Clark's expedition route.
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This geographic data file presents polygon data for the boundaries of the Louisiana Purchase of 1803. Its purchase became the final catalyst in launching Thomas Jefferson's long-held dream of a major expedition of the American west.


    map background search result map search result map Lewis & Clark Expedition route of the Corps of Discovery, US 1804-1806 at 1:2,000,000 Lewis & Clark Expedition key westbound & eastbound sites, US 1804-1806 at 1:2,000,000 Lewis & Clark Expedition: Boundaries of the Louisiana Purchase, 1803 Lewis & Clark Expedition key mountain passes, US 1804 - 1806 at 1:2,000,000 Lewis & Clark Expedition route of the Corps of Discovery, US 1804-1806 at 1:2,000,000 Lewis & Clark Expedition key westbound & eastbound sites, US 1804-1806 at 1:2,000,000 Lewis & Clark Expedition: Boundaries of the Louisiana Purchase, 1803 Lewis & Clark Expedition key mountain passes, US 1804 - 1806 at 1:2,000,000