- Adams County Paleo-Indian District — Adams
- James Akey Farm — Wayne
- Alligator Effigy Mound — Licking
- Arledge Mounds I and II — Pickaway
- Barnesville Petroglyph — Belmont
- Howard Baum Site (33RO270) — Ross
- Beam Farm Woodland Archeological District — Clinton
- Benham Mound — Hamilton
- Bone Mound II — Warren
- Bone Stone Graves — Warren
- Brokaw Site — Belmont
- Brooke Site — Defiance
- Austin Brown Mound — Ross
- Bullskin Creek Site — Clermont
- Burchenal Mound — Hamilton
- Wesley Butler Archeological District — Hamilton
- Cary Village Site — Madison
- Cedar-Bank Works — Ross
- Clarke Farm Site — Clermont
- W.C. Clemmons Mound — Pickaway
- Clough Creek and Sand Ridge Archeological District — Hamilton
- Conrad Mound Archeological Site — Hamilton
- Coon Hunters Mound — Fairfield
- George Deffenbaugh Mound — Hocking
- Demoret Mound — Butler
- Devanney Site — Clermont
- Dodge Site — Wood
- Dunns Pond Mound — Logan
- East Fork Site — Clermont
- Ellis Mounds — Union
- Etna Township Mounds I And II — Licking
- Ety Habitation Site — Fairfield
- Ferris Site — Clermont
- Feurt Mounds and Village Site — Scioto
- Fort Miamis Site — Lucas
- Fortner Mounds I, II — Fairfield
- Gatch Site — Clermont
- Great Mound — Butler
- Highbank Park Works — Delaware
- Highbanks Metropolitan Park Mounds I and II — Delaware
- Hillside Haven Mound — Clinton
- Hodgen's Cemetery Mound — Jefferson
- Horn Mound — Pickaway
- Incinerator Site — Montgomery
- Irishtown Bend Archeological District — Cuyahoga
- Jackson Mound — Fayette
- Karshner Mound — Hocking
- Keiter Mound — Clinton
- Kelleys Island South Shore District — Erie
- Kinzer Mound — Ross
- Lake Ridge Island Mounds — Logan
- Luthor List Mound — Pickaway
- Mann Mound — Butler
- Mariemont Embankment and Village Site — Hamilton
- Markham Mound — Vinton
- Mathew Mound — Hamilton
- McLaughlin Mound — Knox
- Moar Mound and Village — Warren
- Morris-Franks Site — Lorain
- Mt. Nebo Archeological District — Hamilton
- North Union Shaker Site — Cuyahoga
- Odd Fellows' Cemetery Mound — Hamilton
- Old Maid's Orchard Mound — Fairfield
- Opatrny Village Site — Belmont
- Orators Mound — Greene
- Perin Village Site — Hamilton
- Piketon Mounds — Pike
- Pollock Works — Greene
- Carl Potter Mound — Champaign
- Raleigh Mound — Knox
- Ranger Station Mound — Vinton
- Ratcliffe Mound — Vinton
- Reamer Barn — Lorain
- Reeves Mound — Meigs
- Rennert Mound Archeological District — Hamilton
- Roberts Mound — Butler
- Rocky Fork Park Site — Highland
- D.S. Rose Mound — Butler
- Edith Ross Mound — Hocking
- Ross Trails Adena Circle — Butler
- Theodore B. Schaer Mound — Fairfield
- Shawnee Lookout Archeological District — Hamilton
- Short Woods Park Mound — Hamilton
- Snead Mound — Clermont
- State Line Archeological District — Hamilton
- David Stitt Mound — Ross
- Story Mound — Hamilton
- Tarlton Cross Mound — Fairfield
- Tower Site — Belmont
- Tremper Mound and Works — Scioto
- Turpin Site — Hamilton
- Ufferman Site — Delaware
- Williamson Mound Archeological District — Butler
- Winegardner Village — Fairfield
- Wolf Plains — Adams
- Wright-Patterson Air Force Base Mound — Greene
- Zaleski Methodist Church Mound — Vinton
- Zimmerman Kame — Hardin
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- Aberdeen Mound — Brown
- Adena Mound — Ross
- Armco Park Mound I — Warren
- Armco Park Mound II — Warren
- Colerain Works Archeological District — Hamilton
- Dravo Gravel Site — Hamilton
- Dunlap Archeological District — Hamilton
- Fairfield Township Works I — Butler
- Fortified Hill Works — Butler
- Garver-Rentschler Barn — Butler
- Hahn Field Archeological District — Hamilton
- Hogan-Borger Mound Archeological District — Butler
- Hopeton Earthworks — Ross
- Norwood Mound — Hamilton
- Round Barn — Allen
- Round Barn — Auglaize
- Round Barn — Putnam
- Round Barn — Paulding
- Spruce Run Earthworks — Delaware
- Union Township Works II — Butler
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- Barker Village Site — Summit
- Boice Fort and Village Site — Ashtabula
- Chester and Frances Bolton House — Cuyahoga
- Burrell Fort — Lorain
- Burrell Orchard Site — Lorain
- T.C. Campbell Mound — Ross
- Tom Cannon Mound — Franklin
- Carlisle Fort — Montgomery
- Coe Mound — Franklin
- Columbus Country Club Mound — Franklin
- Conneaut Works — Ashtabula
- Davis Works — Hocking
- Dayton Power and Light Company Mound — Adams
- Dixon Mound — Licking
- Eagle Township Works I Mound — Brown
- Edgington Mound — Clermont
- Eiden Prehistoric District — Lorain
- Elk Lick Road Mound — Clermont
- Enon Mound — Clark
- Ety Enclosure — Fairfield
- Everett Knoll Complex — Summit
- Fort Island Works — Summit
- Frankfort Works Mound — Ross
- John Galbreath Mound — Franklin
- Gartner Mound and Village Site — Ross
- Glenford Fort — Perry
- Norma Grantham Site (33-La-139) — Lake
- Great Seal Park Archeological District — Ross
- Hartley Mound — Franklin
- High Banks Works — Ross
- Hill-Kinder Mound — Warren
- Holder-Wright Works — Franklin
- Hopewell Furnace Site — Mahoning
- Hopewell Mound Group — Ross
- Hueston Woods Park Mound — Preble
- Hurley Mound — Clinton
- Indian Hills Site — Wood
- Jackson Fort — Franklin
- H.P. Jeffers Mound — Franklin
- Johnson Site II — Tuscarawas
- Kern Effigy (33WA372) — Warren
- Keystone Furnace — Jackson
- Landen Mounds I and II — Warren
- Lichliter Mound and Village Site — Montgomery
- Locust Site (33MU160) — Muskingum
- Lost Lane Farm — Geauga
- MacNichol Site — Wood
- Madison Fort — Lake
- Maudru House — Stark
- McDaniel Mound — Licking
- Melick Mound — Licking
- Charles Metzger Mound — Ross
- Nashport Mound — Muskingum
- Nettle Lake Mound Group — Williams
- Newlove Works — Clark
- Eli Nichols Farm — Coshocton
- Old Chillicothe Site — Greene
- Paleo Crossing Site — Medina
- Philo II Archeological District — Muskingum
- Walter Ring House and Mill Site — Monroe
- Rocky Fork Park Group — Highland
- Scioto Township Works I — Pike
- Seip Earthworks and Dill Mounds District — Ross
- Skunk Hill Mounds — Madison
- Sollars Farmstead — Fayette
- South Park Site — Cuyahoga
- Speedway Mound — Jefferson
- Sprott's Hill Mounds Site — Ashland
- Spruce Hill Works — Ross
- Stackhouse Mound and Works — Knox
- Stubbs Earthworks — Warren
- Taylor Mound and Village Site — Warren
- Terra Vista Archeological District — Cuyahoga
- Tick Ridge Mound District — Pickaway
- Trevey Mound (33WA193) — Warren
- Vaughn Site (33CU65) — Cuyahoga
- Wamsley Village Site — Adams
- Winameg Mounds — Fulton
- Windsor Mills Fort and Village Site — Ashtabula
- Wolf Creek Mound — Montgomery
- Workman Works — Highland
- Wright Brothers Memorial Mound Group — Greene
- Wyatt's Tavern-Fort Morrow Site — Marion
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