|
Name |
Image |
Date |
Location |
County |
Ownership |
Description |
| 1 |
Arthur B. Williams Memorial Woods |
|
1974 |
41°33′44″N 81°25′36″W / 41.562282°N 81.426792°W / 41.562282; -81.426792 (Arthur B. Williams Memorial Woods) |
Cuyahoga |
municipal |
A remarkably pristine remnant beech-maple forest |
| 2 |
Blacklick Woods |
 |
1974 |
39°56′14″N 82°48′28″W / 39.937222°N 82.807778°W / 39.937222; -82.807778 (Blacklick Woods) |
Fairfield |
county |
An outstanding example of relatively undisturbed, old-growth beech-maple and swamp forest communities |
| 3 |
Brown's Lake Bog |
 |
1967 |
40°40′51″N 82°03′45″W / 40.6809°N 82.0624°W / 40.6809; -82.0624 (Brown's Lake Bog) |
Wayne |
private |
One of the few well-preserved, virgin boreal acid bogs remaining in a region where wetlands have been drained for agricultural use. |
| 4 |
Buzzardroost Rock, Lynx Prairie, The Wilderness |
 |
1967 |
38°45′34″N 83°24′25″W / 38.759381°N 83.407013°W / 38.759381; -83.407013 (Lynx Prairie) |
Adams |
private |
Supports many rare or uncommon species and it has an almost 50- year history of scientific observations. |
| 5 |
Cedar Bog |
 |
1967 |
40°03′34″N 83°47′44″W / 40.059444°N 83.795556°W / 40.059444; -83.795556 (Cedar Bog) |
Champaign |
state |
An excellent example of a marl swamp. Part of Cedar Bog State Nature Preserve. |
| 6 |
Clear Fork Gorge |
 |
1967 |
40°36′40″N 82°17′13″W / 40.610982°N 82.286827°W / 40.610982; -82.286827 (Clear Fork Gorge) |
Ashland |
state |
Clearly illustrates evidence of stream reversal due to the Wisconsin glacier. Located in Mohican State Park. |
| 7 |
Clifton Gorge |
 |
1967 |
39°47′38″N 83°49′53″W / 39.793903°N 83.831525°W / 39.793903; -83.831525 (Clifton Gorge) |
Greene |
state |
Exemplary of interglacial and postglacial canyon-cutting into the dolomites of the Niagara Escarpment. Part of Clifton Gorge State Nature Preserve. |
| 8 |
Crall Woods |
|
1974 |
41°01′42″N 82°26′04″W / 41.028219°N 82.434376°W / 41.028219; -82.434376 (Crall Woods) |
Ashland |
private |
A near-virgin remnant of maple-basswood-beech forest-type. |
| 9 |
Cranberry Bog |
 |
1968 |
39°55′54″N 82°28′06″W / 39.931545°N 82.468232°W / 39.931545; -82.468232 (Cranberry Bog) |
Licking |
state |
The only known bog of its type in existence. Part of Cranberry Bog State Nature Preserve. |
| 10 |
Dysart Woods |
 |
1967 |
39°59′05″N 80°59′51″W / 39.9846°N 80.9976°W / 39.9846; -80.9976 (Dysart Woods) |
Belmont |
state |
One of the finest remaining examples of the white oak forests of eastern Ohio. Managed by Ohio University. |
| 11 |
Fort Hill State Memorial |
 |
1974 |
Hillsboro39°06′47″N 83°24′23″W / 39.1131°N 83.4063°W / 39.1131; -83.4063 (Fort Hill State Memorial) |
Highland |
state |
Excellent outcrops of Silurian, Devonian, and Mississippian sedimentary bedrock and a natural bridge. |
| 12 |
Glacial Grooves State Memorial |
 |
1967 |
41°36′59″N 82°42′23″W / 41.616304°N 82.70652°W / 41.616304; -82.70652 (Glacial Grooves State Memorial) |
Erie |
state |
Very large limestone glacial grooves. |
| 13 |
Glen Helen Natural Area |
 |
1965 |
39°48′15″N 83°52′54″W / 39.804125°N 83.881697°W / 39.804125; -83.881697 (Glen Helen Natural Area) |
Greene |
private |
Includes a waterfall that carved a large travertine bowl around its pool. |
| 14 |
Goll Woods |
 |
1974 |
41°33′15″N 84°21′42″W / 41.554294°N 84.361738°W / 41.554294; -84.361738 (Goll Woods) |
Fulton |
state |
One of the best remaining examples of an oak-hickory dominated forest in Ohio. Part of Goll Woods State Nature Preserve. |
| 15 |
Hazelwood Botanical Preserve |
|
1974 |
|
Hamilton |
state |
Highly detailed study of the site's plant ecology was published in 1929. Managed by the University of Cincinnati. |
| 16 |
Highbanks Natural Area |
 |
1980 |
40°08′38″N 83°01′42″W / 40.143889°N 83.028333°W / 40.143889; -83.028333 (Highbanks Natural Area) |
Delaware, Franklin |
county |
A forested bluff overlooking the Olentangy River. |
| 17 |
Holden Natural Area |
|
1967 |
|
Geauga, Lake |
private |
A complex of three natural areas. |
| 18 |
Hueston Woods |
 |
1967 |
39°34′21″N 84°44′29″W / 39.5725°N 84.741389°W / 39.5725; -84.741389 (Hueston Woods) |
Butler, Preble |
state |
A noteworthy example of beech-maple climax forest that has never been cut. Located in Hueston Woods State Park. |
| 19 |
Mantua Swamp |
|
1976 |
41°16′49″N 81°12′41″W / 41.280278°N 81.211389°W / 41.280278; -81.211389 (Mantua Swamp) |
Portage |
private |
Contains many different wetland communities. |
| 20 |
Mentor Marsh |
 |
1964 |
41°43′45″N 81°18′20″W / 41.729164°N 81.305492°W / 41.729164; -81.305492 (Mentor Marsh) |
Lake |
state |
Consists of marsh vegetation, aquatic plants, swamp and bottomland forest, and upland forest. Part of Mentor Marsh State Nature Preserve. |
| 21 |
Serpent Mound Cryptoexplosive Structure |
 |
1980 |
39°02′00″N 83°24′00″W / 39.033333°N 83.4°W / 39.033333; -83.4 (Serpent Mound crater) |
Adams, Highland, Pike |
private |
A structure of undetermined origin exposed by differential erosion. |
| 22 |
Tinker's Creek Gorge |
 |
1967 |
41°21′54″N 81°36′35″W / 41.365°N 81.609722°W / 41.365; -81.609722 (Tinker's Creek Gorge) |
Cuyahoga |
municipal |
Contains a virgin oak-hickory and virgin beech-maple-hemlock forest. |
| 23 |
White Pine Bog Forest |
|
1976 |
|
Geauga |
municipal, private |
The only remaining near-virgin remnant white pine boreal bog in Ohio. |
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