Edwardsville is the county seat for Madison County
Hartford is in Madison County
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Near Lewis and Clark Trail south of Frontage Road.
The exact location of Lewis & Clark's Camp River Dubois winter campsite is not known - all physical evidence is gone. Guided by journal entries, Clark's rough sketches, and maps, historians have deduced the look and general location of this historic . . . — — Map (db m163849) HM
Near here at Camp Dubois, the Lewis and Clark Detachment spent the winter of 1803. They left on May 14, 1804, ascending the Missouri River to its source. Crossed the Great Divide reaching the Pacific on November 7, 1805. They returned to Illinois on . . . — — Map (db m141833) HM
On Levee Road near State Route 3 (Illinois Route 3).
Meriwether Lewis and William Clark of the Corps of Discovery stayed at Camp River Dubois during the winter of 1803–1804, on their journey to find an all-water-route to the Pacific Ocean. For five months, the Corps stayed near the confluence of . . . — — Map (db m2400) HM
On Lewis and Clark Trail south of Frontage Road, on the right when traveling south.
In 1804-1806, Captains Meriwether Lewis and William Clark led the Corps of Discovery on an epic journey. Charged by President Thomas Jefferson to find a water route to the Pacific Ocean through the newly acquired Louisiana territory, they mapped the . . . — — Map (db m163844) HM
On Lewis and Clark Trail south of Frontage Road, on the right when traveling south.
Near this site along the river Dubois, in the vicinity of the confluence of the Mississippi and Missouri Rivers, the Corps of Discovery established its 1803-1804 winter camp and prepared for the historic expedition, which departed on May 14, 1804. — — Map (db m163841) HM
On West Hawthorne Street just east of Lewis and Clark Boulevard (Illinois Route 3), on the right when traveling east.
The exact number of participants on the expedition is uncertain. Journals of participants indicate that it may have been as few as 26 and as many as 45. The following names were mentioned in accounts of the expedition:
Meriwether Lewis . . . — — Map (db m142937) HM