14 May 1804–23 September 1806
Lewis and Clark Expedition
The Corps of Discovery travelled from the Mississippi watershed to the Pacific and back, guided and supported by Indigenous communities along a route already known to them.
Person
Sacagawea
A Lemhi Shoshone woman whose language knowledge, diplomacy, and geographic familiarity supported the expedition.
Lifespanc. 1788–after 1812
Rolesinterpreter, guide
Related expeditions
Sources and further reading
- Lewis and Clark National Historic Trail, US National Park Service. Route, chronology, participants, and historical context.