
Overview
The British flag would not be raised above Fort Sackville Feb. 25, 1779. At 10 A.M., the garrison surrendered to American Colonel George Rogers Clark. His American army, aided by French residents of the Illinois country, had marched through freezing floodwaters to gain this victory. The fort’s capture assured United States claims to the frontier, an area nearly as large as the original 13 states.
The weather in the area is quite typical for the Midwest. The average temperature for the winter months is in the mid 30s, but the summers can often be hot and humid with temperatures reaching into the 90s.
Gallery
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Things to do

The Junior Ranger program helps kids get involved and learn more about George Rogers Clark and the Revolutionary War. Anyone can become a Junior Ranger by completing activities during a park visit.
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A 30 minute film talking about George Rogers Clark, his march to Vincennes, and the attack on Fort Sackville.
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Start your experience at the Visitor Center. Park Staff and volunteers will be located at the front desk to greet you and answer questions. Allow yourself at least a few minutes to become oriented to the park operation. The Visitor Center is open daily from 9:00 AM to 5:00 PM Eastern.
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Visit the Memorial and see the seven (7) murals that tell the story of Clark and the Old Northwest along with a statue of George Rogers Clark. Please stop by the visitor center first.
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