This swallowtail flag is blue with a yellow border. It was designed in 1987 by Rick Pelton, the incumbent County Engineer. The main image is of the replica Eiffel Tower that is located at Kings Island Theme Park. A circle with eleven red stars spells out the names of the eleven townships. The slogan "The Incredible County," a service mark of the county, appears at the bottom. Warren County was established in 1803. It was named for General Joseph Warren of the Revolutionary War. Sources: Knepper, George W. ed., Tanya West Dean, and W. David Speas. Along the Ohio Trail: A Short History of Ohio Lands. Columbus: Auditor of State, Jim Petro, 2001. Purcell, John. 2007. Personal communication.