Prairie du Rocher, Illinois
（重定向自Prairie du Rocher）
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![French Colonial Illinois Country](/Images/godic/202502/04/A_plan_of_the_several_villages_in_the_illinois_country5603.png")
Prairie du Rocher ("The Rock Prairie" in French) is a village in Randolph County, Illinois, United States. Founded in the French colonial period in the American Midwest, the community is located near bluffs that flank the east side of the Mississippi River along the floodplain often called the "American Bottom". The population was 604 at the 2010 census.