List of National Natural Landmarks in Ohio | List National Natural Landmarks Ohio

From List of National Natural Landmarks, these are the National Natural Landmarks in Ohio. There are 23 in total.

Name	Date	Location	County	Description
Arthur B. Williams Memorial Woods	01974-01-011974	Cleveland	Cuyahoga	A remarkably pristine remnant beech-maple forest
Blacklick Woods	01974-01-011974		Fairfield	An outstanding example of relatively undisturbed, old-growth beech-maple and swamp forest communities
Brown's Lake Bog	01967-01-011967		Wayne	One of the few well-preserved, virgin boreal acid bogs remaining in a region where wetlands have been drained for agricultural use.
Buzzardroost Rock, Lynx Prairie, The Wilderness	01967-01-011967		Adams	Supports many rare or uncommon species and it has an almost 50- year history of scientific observations.
Cedar Bog	01967-01-011967	Urbana	Champaign	An excellent example of a marl swamp.
Clear Fork Gorge	01967-01-011967		Ashland	Clearly illustrates evidence of stream reversal due to the Wisconsin glacier.
Clifton Gorge	01967-01-011967		Greene	Exemplary of interglacial and postglacial canyon-cutting into the dolomites of the Niagara Escarpment.
Crall Woods	01974-01-011974		Ashland	A near-virgin remnant of maple-basswood-beech forest-type.
Cranberry Bog	01968-01-011968		Licking	The only known bog of its type in existence.
Dysart Woods	01967-01-011967	Belmont	Belmont	One of the finest remaining examples of the white oak forests of eastern Ohio.
Fort Hill State Memorial	01974-01-011974		Highland	Excellent outcrops of Silurian, Devonian, and Mississippian sedimentary bedrock and a natural bridge.
Glacial Grooves State Memorial	01967-01-011967		Erie	Very large limestone glacial grooves.
Glen Helen Natural Area	01965-01-011965	Yellow Springs	Greene	Includes a waterfall that carved a large travertine bowl around its pool.
Goll Woods	01974-01-011974		Fulton	One of the best remaining examples of an oak-hickory dominated forest in Ohio.
Hazelwood Botanical Preserve	01974-01-011974		Hamilton	Highly detailed study of the site’s plant ecology was published in 1929.
Highbanks Natural Area	01980-01-011980		Delaware, Franklin	A forested bluff overlooking the Olentangy River.
Holden Natural Area	01967-01-011967		Geauga, Lake	A complex of three natural areas.
Hueston Woods	01967-01-011967		Butler, Preble	A noteworthy example of beech-maple climax forest that has never been cut.
Mantua Swamp	01976-01-011976		Portage	Contains many different wetland communities.
Mentor Marsh	01964-01-011964		Lake	Consists of marsh vegetation, aquatic plants, swamp and bottomland forest, and upland forest.
Serpent Mound Cryptoexplosive Structure	01980-01-011980		Adams, Highland, Pike	A structure of undetermined origin exposed by differential erosion.
Tinkers Creek Gorge	01967-01-011967		Cuyahoga	Contains a virgin oak-hickory and virgin beech-maple-hemlock forest.
White Pine Bog Forest	01976-01-011976		Geauga	The only remaining near-virgin remnant white pine boreal bog in Ohio.

State of Ohio

Columbus (capital)

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Regions	Allegheny Plateau Appalachian Ohio Black Swamp The Bluegrass Extreme Northwest Ohio Glacial till plains Lake Erie Lake Erie Islands Miami Valley Northeast Ohio Northwest Ohio Western Reserve

Metro areas	Akron Canton Cincinnati Cleveland Columbus Dayton Findlay-Tiffin Ironton Lima Mansfield Steubenville Toledo Youngstown-Warren

Largest cities	Akron Canton Cincinnati Cleveland Columbus Cuyahoga Falls Dayton Elyria Euclid Hamilton Kettering Lakewood Lorain Mansfield Middletown Newark Parma Springfield Toledo Youngstown

Counties	Adams Allen Ashland Ashtabula Athens Auglaize Belmont Brown Butler Carroll Champaign Clark Clermont Clinton Columbiana Coshocton Crawford Cuyahoga Darke Defiance Delaware Erie Fairfield Fayette Franklin Fulton Gallia Geauga Greene Guernsey Hamilton Hancock Hardin Harrison Henry Highland Hocking Holmes Huron Jackson Jefferson Knox Lake Lawrence Licking Logan Lorain Lucas Madison Mahoning Marion Medina Meigs Mercer Miami Monroe Montgomery Morgan Morrow Muskingum Noble Ottawa Paulding Perry Pickaway Pike Portage Preble Putnam Richland Ross Sandusky Scioto Seneca Shelby Stark Summit Trumbull Tuscarawas Union Van Wert Vinton Warren Washington Wayne Williams Wood Wyandot

National Natural Landmarks in the United States

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