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Historic Sites in Illinois

Explore 1 historic place in Illinois, from museums and landmarks to destinations connected with defining events and eras in American history.

Historic Destinations in Illinois

Lewis & Clark State Historic Site

Hartford, IL

An Illinois historic site at Camp Dubois interpreting the Corps of Discovery's 1803–1804 winter preparations before the Lewis and Clark Expedition headed west.

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Historical Eras Represented

Early American Republic Westward Expansion

Historical Events

1804–1806

Lewis & Clark Expedition

Early American Republic

The Corps of Discovery crossed the continent from the Missouri River to the Pacific, mapping western geography, gathering scientific information, and conducting diplomacy across the homelands of many Native nations.

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