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Boulder Recreation Area is situated on the eastern shore of Carlyle Lake, a prime getaway for city-dwellers and families. Located 50 miles east of St. Louis, the area offers the peaceful retreat of a small town combined with the grandeur of Illinois' largest manmade lake.

Boulder Rec. Area camping trips are easy to plan with ReserveAmerica. Boulder Rec. Area campground reservations can be made online. Click one of the links below to see available campsites at Boulder Rec. Area or day pass availability.