These properties are not yet developed or open to the public unless under guided supervision

• Timothy Park –  60 acres in Hamilton donated by Joseph L. & Sarah S. Marcum in 1999    

• Green Heron Wetland – 21 acres in Ross Township donated by Gerald L. Broshear (Green Heron, Ltd.) in 2000

• John C. & Elizabeth C. Day Family Park – 276 acres in Ross Township bequeathed from the Estate of Dorothy M. Day in 2002

• Carl & Nell Stander Preserve - 187 acres in Reily Township acquired via bargain purchase from the Carl Stander Family in 2003

• Hueston Farm & Forest Preserve - 468 acres in Hanover Township acquired via purchase financed in part with a Clean Ohio Fund grant in April, 2007