Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Old Forest Home Cemetery | Cemetery | 243 | Defiance | 41 18 07 N | 084 46 35 W |
| Monument Park | Park | 287 | Mercer | 40 24 47 N | 084 46 33 W |
| Twin Willows Lake | Reservoir | 338 | Darke | 40 19 07 N | 084 46 33 W |
| North Dayton | Populated Place | 332 | Darke | 40 19 50 N | 084 46 32 W |
| Cincinnati West Airport | Airport | 179 | Hamilton | 39 15 29 N | 084 46 32 W |
| Fort Recovery United Methodist Church | Church | 287 | Mercer | 40 24 49 N | 084 46 31 W |
| Wren | Populated Place | 247 | Van Wert | 40 48 03 N | 084 46 31 W |
| Bucks Corner | Populated Place | 320 | Darke | 40 18 33 N | 084 46 31 W |
| Buckhorn Corner | Populated Place | 322 | Darke | 40 13 23 N | 084 46 31 W |
| School Number 5 (historical) | School | 224 | Paulding | 41 11 15 N | 084 46 31 W |
| Gallion Run Trail | Trail | 274 | Preble | 39 35 08 N | 084 46 31 W |
| Alert | Populated Place | 194 | Butler | 39 19 30 N | 084 46 31 W |
| Wren Post Office | Post Office | | Van Wert | 40 48 05 N | 084 46 30 W |
| Fort Recovery Elementary School | School | 288 | Mercer | 40 24 44 N | 084 46 30 W |
| Fort Recovery High School | School | 288 | Mercer | 40 24 43 N | 084 46 30 W |
| Pleasant View Church | Church | 254 | Van Wert | 40 49 46 N | 084 46 30 W |
| Pleasant Ridge Cemetery | Cemetery | 335 | Darke | 40 18 59 N | 084 46 30 W |
| Pleasant Ridge Church | Church | 335 | Darke | 40 19 00 N | 084 46 30 W |
| Brady School (historical) | School | 231 | Paulding | 41 01 58 N | 084 46 30 W |
| Shisler Ditch | Canal | 225 | Paulding | 41 07 16 N | 084 46 30 W |
| Forest Home Cemetery | Cemetery | 242 | Defiance | 41 18 08 N | 084 46 30 W |
| Alert Post Office (historical) | Post Office | 195 | Butler | 39 19 30 N | 084 46 30 W |
| Valley Junction | Populated Place | 151 | Hamilton | 39 10 11 N | 084 46 30 W |
| Valley Juntion Post Office (historical) | Post Office | 150 | Hamilton | 39 10 10 N | 084 46 30 W |
| J Stabler Ditch | Canal | 228 | Paulding | 41 05 23 N | 084 46 29 W |
| Henery Ditch | Canal | 232 | Paulding | 41 01 33 N | 084 46 28 W |
| Union City Golf Course | Locale | 326 | Darke | 40 08 58 N | 084 46 28 W |
| McGill | Populated Place | 231 | Paulding | 41 01 08 N | 084 46 27 W |
| Fourmile Church | Church | 281 | Preble | 39 35 33 N | 084 46 27 W |
| Kiata Creek | Stream | | Butler | 39 21 49 N | 084 46 27 W |
| Harrison Airport | Airport | 178 | Hamilton | 39 15 33 N | 084 46 27 W |
| Township of Jackson | Civil | 325 | Darke | 40 12 27 N | 084 46 25 W |
| McGill Post Office (historical) | Post Office | 232 | Paulding | 41 01 10 N | 084 46 25 W |
| Alert Post Office (historical) | Post Office | 192 | Butler | 39 19 25 N | 084 46 25 W |
| Edon High School | School | 276 | Williams | 41 33 20 N | 084 46 24 W |
| Duck Creek | Stream | | Van Wert | 40 44 23 N | 084 46 23 W |
| Clarksville Bridge | Bridge | 248 | Defiance | 41 25 20 N | 084 46 23 W |
| Kennard Cemetery | Cemetery | 254 | Butler | 39 23 28 N | 084 46 23 W |
| Foulks Ditch | Canal | 250 | Defiance | 41 23 57 N | 084 46 22 W |
| Nike Site CD-78C (historical) | Military (Historical) | 315 | Butler | 39 33 02 N | 084 46 21 W |
| Whitewater School (historical) | School | 160 | Hamilton | 39 12 17 N | 084 46 21 W |
| Buck Harpsburg Ditch | Canal | 286 | Mercer | 40 24 23 N | 084 46 20 W |
| Fairhaven Post Office (historical) | Post Office | 295 | Preble | 39 38 20 N | 084 46 20 W |
| Township of Jefferson | Civil | 354 | Preble | 39 51 01 N | 084 46 19 W |
| Interchange 2 | Crossing | 174 | Hamilton | 39 14 27 N | 084 46 19 W |
| Fairhaven | Populated Place | 295 | Preble | 39 38 20 N | 084 46 18 W |
| Saint Paul Church | Church | 255 | Mercer | 40 38 01 N | 084 46 17 W |
| Fairhaven United Presbyterian Church | Church | 297 | Preble | 39 38 28 N | 084 46 17 W |
| Hillgrove Cemetery | Cemetery | 328 | Darke | 40 10 45 N | 084 46 15 W |
| Pleasant Valley Golf Course | Locale | 231 | Paulding | 41 02 12 N | 084 46 15 W |
| Edon Community Park | Park | 269 | Williams | 41 33 37 N | 084 46 14 W |
| First Presbyterian Church | Church | 232 | Defiance | 41 17 36 N | 084 46 13 W |
| East Fork Four Mile Creek | Stream | | Preble | 39 35 38 N | 084 46 13 W |
| Springdale Cemetery | Cemetery | 254 | Butler | 39 26 25 N | 084 46 13 W |
| Reily Cemetery | Cemetery | 256 | Butler | 39 25 47 N | 084 46 13 W |
| Sponseller Ditch | Canal | 238 | Van Wert | 40 56 55 N | 084 46 12 W |
| Bayer Ditch | Canal | 228 | Paulding | 41 04 11 N | 084 46 12 W |
| Hicksville Mennonite Church | Church | 232 | Defiance | 41 17 34 N | 084 46 12 W |
| William Henry Harrison High School | School | 178 | Hamilton | 39 15 19 N | 084 46 12 W |
| Brady Airport | Airport | 231 | Paulding | 41 01 46 N | 084 46 11 W |
| Concord Church | Church | 332 | Preble | 39 42 48 N | 084 46 11 W |
| Harshman Bridge | Bridge | 325 | Preble | 39 42 09 N | 084 46 11 W |
| Buck Run | Stream | | Butler | 39 21 40 N | 084 46 11 W |
| Hicksville Elementary School | School | 231 | Defiance | 41 17 40 N | 084 46 10 W |
| Edon | Populated Place | 274 | Williams | 41 33 23 N | 084 46 08 W |
| Chaney Ditch | Canal | 224 | Paulding | 41 11 43 N | 084 46 07 W |
| Concord Cemetery | Cemetery | 332 | Preble | 39 42 47 N | 084 46 07 W |
| Hedgerow Picnic Area | Locale | 272 | Preble | 39 35 27 N | 084 46 07 W |
| Eighteenmile House | Building | 175 | Hamilton | 39 14 17 N | 084 46 07 W |
| Hill Grove | Populated Place | 329 | Darke | 40 10 39 N | 084 46 06 W |
| Russell Run | Stream | | Williams | 41 25 32 N | 084 46 06 W |
| Hillgrove Post Office (historical) | Post Office | 329 | Darke | 40 10 40 N | 084 46 05 W |
| Clarksville (historical) | Populated Place | 253 | Defiance | 41 25 20 N | 084 46 05 W |
| Edon Cemetery | Cemetery | 275 | Williams | 41 33 07 N | 084 46 05 W |
| Mud Lake Bog Nature Preserve | Park | 297 | Williams | 41 38 53 N | 084 46 05 W |
| Okeana Post Office | Post Office | 192 | Butler | 39 20 50 N | 084 46 05 W |
| Clarksville School (historical) | School | 258 | Defiance | 41 24 42 N | 084 46 04 W |
| Clarksville Cemetery | Cemetery | 251 | Williams | 41 25 41 N | 084 46 04 W |
| Edon United Methodist Church | Church | 272 | Williams | 41 33 30 N | 084 46 04 W |
| Saint Peters Lutheran Church | Church | 272 | Williams | 41 33 27 N | 084 46 04 W |
| Harrison Middle School | School | 177 | Hamilton | 39 15 18 N | 084 46 04 W |
| Mud Lake | Lake | 297 | Williams | 41 38 53 N | 084 46 03 W |
| Okeana | Populated Place | 195 | Butler | 39 20 52 N | 084 46 03 W |
| Tamarack Ditch | Canal | 265 | Williams | 41 32 02 N | 084 46 02 W |
| Saint Michaels Catholic Church | Church | 231 | Defiance | 41 17 22 N | 084 46 01 W |
| Maple Grove Cemetery | Cemetery | 161 | Hamilton | 39 10 02 N | 084 45 59 W |
| Hillgrove Federated Church | Church | 331 | Darke | 40 10 43 N | 084 45 58 W |
| Hedge Apple Trail | Trail | 293 | Preble | 39 34 40 N | 084 45 58 W |
| Quarry Picnic Area | Locale | 294 | Preble | 39 35 41 N | 084 45 57 W |
| Pleasant Grove School (historical) | School | 227 | Paulding | 41 06 24 N | 084 45 56 W |
| Indian Creek Preserve | Park | 246 | Butler | 39 26 20 N | 084 45 56 W |
| Fletcher Cemetery | Cemetery | 251 | Van Wert | 40 46 44 N | 084 45 55 W |
| Foster Ditch | Canal | 228 | Paulding | 41 04 39 N | 084 45 55 W |
| Baptist Cemetery | Cemetery | 174 | Hamilton | 39 16 08 N | 084 45 55 W |
| Mentzer Church | Church | 241 | Van Wert | 40 55 53 N | 084 45 54 W |
| Mercia Ditch | Canal | 231 | Paulding | 41 01 39 N | 084 45 54 W |
| Wooding Ditch | Canal | 227 | Paulding | 41 05 31 N | 084 45 54 W |
| Seventh Day Adventist Church | Church | 230 | Defiance | 41 17 19 N | 084 45 54 W |
| Metzer Cemetery | Cemetery | 241 | Van Wert | 40 55 52 N | 084 45 53 W |
| Woodwind Hollow Golf Course | Locale | 292 | Williams | 41 36 44 N | 084 45 53 W |
| Winkler Airport | Airport | 249 | Mercer | 40 42 08 N | 084 45 52 W |
| Assembly of God Church | Church | 229 | Defiance | 41 17 20 N | 084 45 52 W |
| Matthews Creek | Stream | | Williams | 41 33 35 N | 084 45 52 W |
| Wiley (historical) | Populated Place | 332 | Darke | 39 56 00 N | 084 45 51 W |
| Ladd Lake | Lake | 246 | Defiance | 41 25 06 N | 084 45 51 W |
| WOXY-FM (Oxford) | Tower | 307 | Butler | 39 28 44 N | 084 45 51 W |
| Wiley Post Office (historical) | Post Office | 333 | Darke | 39 56 00 N | 084 45 50 W |
| Little Four Mile Creek | Stream | | Preble | 39 35 00 N | 084 45 50 W |
| Little Four Mile Creek | Stream | 263 | Preble | 39 35 01 N | 084 45 50 W |
| Johnson Memorial Library | Building | 232 | Defiance | 41 17 33 N | 084 45 49 W |