Hahn Field Archeological District is a registered historic district near Newtown, Ohio, listed in the National Register of Historic Places on October 29, 1974. Historic uses Camp Graves/Burials Notes Fort Ancient culture Pre-Columbian cultural areas Archaeological sites in Ohio Pre-Columbian archaeological sites Archaeological sites on the National Register of Historic Places in Ohio Historic districts on the National Register of Historic Places in Ohio Archaeological sites in Hamilton County, Ohio National Register of Historic Places in Hamilton County, Ohio