This 407-acre wildlife area lies at the confluence of the Little Portage and Portage rivers, approximately six miles west of Port Clinton. It is easily reached from State Route 53, four miles southwest of Port Clinton, by traveling two miles west on Darr-Hopfinger Road.
The Little Portage Wildlife Area is situated in the flat glacial lake plain region of northwestern Ohio. The area is a river marsh, bounded on the west by the Little Portage River and on the north by the Portage River. Approximately two-thirds of the area is wetlands, with 223 acres of diked marsh and 75 acres of uncontrolled wetlands. Eighty acres of upland are maintained in a mixture of meadow and brushland. The marshes are shallow, varying from one to three feet deep, with the exception of channels up to eight feet deep which were created in the construction of the dikes.