No, all land. The express permission for public lands is written in their rules and regs.
Ohio regulates at the individual parcel level, either being private or public land. In other places they regulate by block or zone, and your license for that area will give you permission to hunt all public lands in that block or zone unless otherwise noted. So Ohio starts with no hunting unless you have permission, whereas a lot of other states start with hunting is allowed, unless you are told not to.