The Masterpieces Of The Ohio Mound Builders: The Hilltop Fortifications, Including Fort Ancient (1916) is a historical book written by E. O. Randall. The book explores the fascinating history of the Ohio Mound Builders, a prehistoric culture that lived in the Ohio Valley region of the United States between 1000 BCE and 1650 CE. The book focuses specifically on the hilltop fortifications built by the Ohio Mound Builders, including the famous Fort Ancient...