Fort Kaskaskia State Historic Site

Fort Kaskaskia SHS
Eroded ramparts of Fort Kaskaska
LocationCounty Roads 3 and 6, west of Chester, Illinois
Coordinates37°58′8″N 89°54′38″W / 37.96889°N 89.91056°W / 37.96889; -89.91056
Built1754 (1754)
Part ofFrench Colonial Historic District (ID74000772)
Added to NRHPApril 3, 1974

Fort Kaskaskia State Historic Site is a 200-acre (0.8 km2) park near Chester, Illinois, on a blufftop overlooking the Mississippi River. It commemorates the vanished frontier town of Old Kaskaskia and the support it gave to George Rogers Clark in the American Revolution.