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Level III Ecoregions of Ohio

Revised April 2000
National Health and Environmental Effects Research Laboratory
U.S. Environmental Protection Agency

level III ecoregions of Ohio region 55   55. Eastern Corn Belt Plains
region 56   56. S. Michigan/N. Indiana Drift Plains
region 57   57. Huron/Erie Lake Plains
region 61   61. Erie Drift Plain
region 70   70. Western Allegheny Plateau
region 71   71. Interior Plateau
region 83   83. Eastern Great Lakes and Hudson Lowlands