Charlestown State Park is located in southern Indiana on the Ohio River and Indiana - Kentucky border. The state park lies near the towns and cities of Louisville, KY, Cincinnati, OH, and Lexington, KY. Charlestown State Park began life as part of the Indiana Army Ammunition Plant and was donated in separate parcels since 1993. Today the park consists of over five thousand acres, making it one the largest national parks in all of Indiana. The park consists of the ‘Fourteen Mile Creek,’ a tributary of the Ohio River, miles of hiking trails, and access to the Ohio River itself. All of these things, and much more, make Charlestown State Park the ideal place to take an RV rental. Accessing the state park with a rental RV from either Indiana or Kentucky is possible by driving along Interstate 64 or 65.