The state of Ohio has a procedure for dedicating properties as state nature preserves through the Ohio Division of Natural Areas & Preserves. Some preserves are owned outright by the state, while others are owned by other agencies. Some are open to the public, and others are not.

List of Ohio State Nature Preserves

State Nature Preserve Acres County Acadia Cliffs State Nature Preserve 112.5 Athens Adams Lake Prairie Nature Preserve 22.37 Washington Audubon Islands Nature Preserve 170 Lucas Aurora Sanctuary State Nature Preserve 164 Portage Baker Woods State Nature Preserve 47.3 Mercer The Evans R. Beck Memorial Nature Preserve 10.1 Portage Betsch Fen Nature Preserve 90.67 Ross Bigelow Cemetery State Nature Preserve 0.5 Madison Blackhand Gorge State Nature Preserve 956.5 Licking Boch Hollow (Kessler) State Nature Preserve 571.0283 Hocking Bonnett Pond Bog State Nature Preserve 16.52 Holmes Boord State Nature Preserve 126.704 Washington Brown's Lake Bog State Nature Preserve 99.16 Wayne Burton Wetlands Nature Preserve 276.5476 Geauga Caesar Creek Gorge State Nature Preserve 483.44 Warren Louis W. Campbell Nature Preserve 210.09 Lucas Carmean Woods State Nature Preserve 39.16 Crawford Cedar Bog State Memorial 426.5 Champaign Chaparral State Nature Preserve 66.67 Adams Christmas Rocks State Nature Preserve 553.68 Fairfield Clear Creek Nature Preserve 4769.21 Hocking, Fairfield Clear Fork Gorge State Nature Preserve 28.77 Ashland The Clifton Gorge - John L. Rich Nature Preserve 268.37 Greene Collier State Nature Preserve 114.86 Seneca O.E. Anderson Compass Plant Prairie 15.5 Lawrence Conkles Hollow State Nature Preserve 86.88 Hocking Conneaut Swamp State Nature Preserve 55.141 Ashtabula Crabill Fen 31.66 Clark Cranberry Bog State Nature Preserve 11 Licking Crane Hollow Nature Preserve 1491.525 Hocking Crooked Run Nature Preserve 77.51 Clermont Dean A. Culberson State Nature Preserve 279.56 Clinton Daughmer Prairie Savannah State Nature Preserve 33.656 Crawford Davey Woods State Nature Preserve 103.17 Champaign Davis Memorial State Nature Preserve 121.81 Adams Marie J. Desonier Nature Preserve 491.34 Adams Drew Woods State Nature Preserve 14.57 Darke Dupont Marsh State Nature Preserve 113.94 Erie Eagle Creek Nature Preserve 472.35 Portage Emerald Hills State Nature Preserve 78.68 Belmont Erie Sand Barrens State Nature Preserve 31.85 Erie Flatiron Lake Bog Nature Preserve 97.09 Portage Forrest Woods Nature Preserve 193.388 Paulding Fowler Woods Nature Preserve 187.069 Richland Gahanna Woods Nature Preserve 59.329 Franklin John F. Gallagher Fen State Nature Preserve 212.75 Clark Goll Woods Nature Preserve 320.64 Fulton Goode Prairie State Nature Preserve 28.43 Miami Alice and George Gott State Nature Preserve 44.92 Portage Greenbelt Nature Preserve 97.3 Hamilton Greenville Falls 79.45 Miami Samuel Gross Memorial Woods Nature Preserve 48.54 Shelby Hach-Otis State Nature Preserve 81.11 Lake Halls Creek Woods State Nature Preserve 218.71 Warren Headlands Dunes State Nature Preserve 25 Lake J. Arthur Herrrick State Nature Preserve 126.5 Portage Hueston Woods Nature Preserve 200 Butler Edward F. Hutchins Nature Preserve 206.48 Delaware Irwin Prairie Nature Preserve 226.467 Lucas Jackson Bog State Nature Preserve 63.382 Stark Johnson Ridge 208.43 Adams Johnson Woods State Nature Preserve 205.79 Wayne Ka-ma-ma Prairie State Nature Preserve 85.983 Adams Karlo Fen 14.6 Summit Kendrick Woods State Nature Preserve 159.24 Allen Kent Bog State Nature Preserve 41.69 Portage Kessler Swamp State Nature Preserve 20.315 Hocking Kiser Lake Wetlands Nature Preserve 51.29 Champaign Kitty Todd Nature Preserve 615.77 Lucas Knox Woods 29.83 Knox Arthur Kyle State Nature Preserve 81.86 Mahoning Ladd Natural Bridge State Nature Preserve 34.98 Washington Lake Katharine State Nature Preserve 2018.968 Jackson Lakeside Daisy State Nature Preserve 19.09 Ottawa Lash's Bog State Nature Preserve 59.543 Stark Lawrence Woods State Nature Preserve 1034.93 Hardin Little Rocky Hollow Nature Preserve 259.04 Hocking Mantua Bog State Nature Preserve 104.81 Portage Marsh Wetlands State Nature Preserve 152.28 Portage William C. McCoy State Nature Preserve 193.65 Ashtabula McCracken Fen State Nature Preserve 93.62 Logan Mentor Marsh Nature Preserve 672.85 Lake Milford Center Railroad Prairie 9.4 Union Eugene & Henrietta Miller Nature Sanctuary 86.02 Highland Morris Woods State Nature Preserve 107.21 Licking Mud Lake Bog State Nature Preserve 74.01 Williams Myersville Fen State Nature Preserve 27.24 Summit Newberry Wildlife Sanctuary State Nature Preserve 50.03 Hamilton Kelleys Island North Pond State Nature Preserve 50.79 Erie North Shore Alvar State Nature Preserve 2.08 Erie Blanche Katharine Novak Audubon Wildlife Sanctuary State Nature Preserve 149 Portage Old Woman Creek State Nature Preserve 570.81 Erie Augusta - Anne Olsen State Nature Preserve 132.13 Huron David B. Owens Fen State Nature Preserve 18.59 Logan Pallister State Nature Preserve 103.5563 Ashtabula Pickerington Ponds Nature Preserve 405.98 Franklin Portage Lakes Wetlands 5.86 Summit Prairie Road Fen State Nature Preserve 94.49 Clark Raven Rock Nature Preserve 95.27 Scioto Rhododendron Cover State Nature Preserve 74.98 Fairfield Kleimaier Rododendron Hollow 31.59 Fairfield Wahkeena State Nature Preserve 68.271 Fairfield Dale and Jackie Riddle State Nature Preserve 105.66 Athens Rockbridge State Nature Preserve 181.03 Hocking Etawah Woods Nature Preserve 1166.652 Highland Rome State Nature Preserve 104.842 Ashtabula Rothenbuhler Woods Nature Preserve 44.33 Monroe Saltpetre Cave Nature Preserve 14.249 Hocking Scioto Brush Creek 30.2 Scioto Paul B. Sears Woods State Nature Preserve 137.25 Crawford Seymour Woods 106 Delaware Shallenberger Nature Preserve 87.57 Fairfield Sharon Woods Gorge State Nature Preserve 20.86 Hamilton Sheepskin Hollow State Nature Preserve 453.176 Columbiana Sheick Hollow Nature Preserve 151 Hocking Sheldon's Marsh State Nature Preserve 472.48 Erie Shoemaker State Nature Preserve 22.394 Adams Siegenthaler - Kaestner Esker State Nature Preserve 36.88 Champaign Smith Cemetery State Nature Preserve 0.63 Madison Spring Beauty Dell State Nature Preserve 41.26 Hamilton Spring Brook Sanctuary State Nature Preserve 31.737 Geauga Springville Marsh Nature Preserve 201.37 Seneca Stages Pond Nature Preserve 177.99 Pickaway Strait Creek Prairie Bluff Prairie Preserve 136.96 Adams, Pike Stratford Woods State Nature Preserve 95.1 Delaware Swamp Cottonwood 20.52 Medina Edward S. Thomas Scenic Nature Preserve 319.88 Franklin Tinkers Creek State Nature Preserve 786 Portage, Summit Travertine Fen State Nature Preserve 21.88 Greene Triangle Lake Bog 61.13 Portage Trillium Trails State Nature Preserve 22.91 Hamilton Walter A. Tucker Scenic Nature Preserve 54.67 Fairfield Charles A. Tummonds Scenic River Preserve 85.67 Portage Wardner - Perkins State Nature Preserve 25.66 Hamilton Robert A. Whipple State Nature Preserve 269.671 Adams White Pine Bog Forest Nature Preserve 375.87 Geauga Zimmerman Prairie 3.48 Greene

References