| Athens |
| Acadia Cliffs State Wildlife Area |
| Burr Oak State Park |
| Desonier State Nature Preserve |
| Fox Lake Wildlife Area |
| Gifford State Forest |
| Shade River State Forest |
| Strouds Run State Park |
| Waterloo State Wildlife Experiment Station |
| Zaleski State Forest |
|
| Belmont |
| Barkcamp State Park |
| Raven Rocks Scenic Area |
|
| Fairfield |
| Buckeye Lake State Park & Wildlife Area |
| Christmas Rocks State Nature Preserve |
| Lockville Locks |
| Pickerington Pond State Nature Preserve |
| Rhododendron Cove State Nature Preserve |
| Rising Park & Mount Pleasant Scenic Area |
| Rock Mill Dam State Wildlife Area |
| Shallenberger State Nature Preserve |
| Tarlton Cross Mound Archeaology Site |
| Tucker (Walter A) State Nature Preserve |
| Wahkeena Nature Preserve |
|
| Galia |
| Bob Evans Farm |
| Tycoon Lake State Wildlife Area |
|
| Guernsey |
| Salt Fork State Park & Wildlife Area |
|
| Hocking |
| Ash Cave |
| Cantwell Cliffs |
| Cedar Falls |
| Clear Creek State Nature Preserve |
| Conkle's Hollow State Nature Preserve |
| Crane Hollow State Nature Preserve |
| Hocking Hills State Park |
| Hocking State Forest |
| Kessler Swamp State Nature Preserve |
| Kittle Rocky Hollow State Nature Preserve |
| Lake Logan State Park |
| Old Man's Cave |
| Rockbridge Ohio's Longest Natural Bridge |
| Rockbridge State Nature Preserve |
| Rockhouse & Rockhouse Natural Arch |
| Rush Creek Lake Wildlife Area |
| Sheick Hollow State
Nature Preserve |
| Tar Hollow State Forest |
| Tar Hollow State Park |
| Wayne National Forest |
|
| Jackson |
| Buckeye Furnace State Memorial |
| Cooper Hollow State Wildlife Area |
| Jackson Lake State Park & Wildlife Area |
| Lake Katherine State Nature Preserve |
| Leo Petroglyph State Memorial |
| Liberty State Wildlife Area |
| Richland Furnace State Forest |
|
| Lawrence |
| Compass Plant (O.E. Anderson) Prairie State Nature Preserve |
| Dean State Forest |
| Wayne National Forest |
|
| Licking |
| Blackhand Gorge State Nature Preserve |
| Boy Scout Camp Covered Bridge |
| Buckeye Lake State Park |
| Canal Greenway Covered Bridge |
| Davis Farm Covered Bridge |
| Flint Ridge State Memorial Archeaology - Historical-Scenic Site |
| Gregg Covered Bridge |
| McLain/Lobdell Covered Bridge |
| Morris Woods State Nature Preserve |
| Octagon Earthworks & Moundbuilders Earthworks Archeaology
$ |
| Shoults/Girl Scout Camp Covered Bridge |
|
| Meigs |
| Belleville Locks and Dam Scenic Historical Area |
| Forked Run State Park |
| Shade River State Forest |
|
| Monroe |
| Rothenbuhler Woods State Nature Preserve |
| Sunfish Creek State Forest |
|
| Morgan |
| Burr Oak State Park |
| Muskingum River State Park |
| Ohio Power Recreation Lands |
| Wayne National Forest |
|
| Muskingum |
| Blue Rock State Forest |
| Blue Rock State Park |
| Dillon State Park |
| Muskingum River State Park |
|
| Noble |
| Senecaville Lake |
| Wolf Run State Park |
|
| Perry |
| Perry State Forest |
| Wayne National Forest |
|
| Vinton |
| Lake Alma State Park |
| Lake Hope State Park |
| Richland Furnace State Forest |
| Tar Hollow State Forest |
| Tar Hollow State Park |
| Zaleski State Forest |
|
| Washington |
| Acadia Cliffs State Wildlife Area |
| Boord State Nature Preserve |
| Irish Run Natural Bridge |
| Ladd Natural Bridge State Nature Preserve |
| Muskingum River State Park |
| National Champion Big Tree: Chinkapin Oak Tree |
| Veto Lake Wildlife Area |
| Wayne National Forest |
|
