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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.
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Major J.W. Powell (right), second Director of the U.S. Geological Survey, with Tau-gu, a chief of the Paiute Indians, in southern Utah, ca 1870. Published as left photo, p.43, in U.S. Geological Survey, Earthquake Information Bulletin, v.11, no.2. March-April 1979. Published as Tau-gu, a Chief of the Paiute Indian tribe and Major Powell in Southern Utah, on page 10 in the U.S. Geological Survey General Information Product, John Wesley Powell: soldier, explorer, scientist (1970).


    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 Major J.W. Powell with Tau-gu, a chief of the Paiute Indians. Utah. circa 1870. Glen Canyon. Utah. circa 1871. Major J.W. Powell with Tau-gu, a chief of the Paiute Indians. Utah. circa 1870. Glen Canyon. Utah. circa 1871. 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