Marsh Wetlands State Nature Preserve

Mantua ( MAN-ə-way) is a village in Portage County, Ohio, United States. It was formed from portions of Mantua Township in the Connecticut Western Reserve. The population was 1,043 at the 2010 census. It is part of the Akron Metropolitan Statistical Area.

The Mantua Bog State Nature Preserve (or Mantua Swamp) is a 104.8-acre (42.4 ha) protected wetland in Mantua Township, Portage County in the U.S. state of Ohio. It was designated a National Natural Landmark in 1976 and a state nature preserve in 1990. The national landmark designation encompasses 285 acres (115 ha) which includes Marsh Wetlands State Nature Preserve, in addition to Mantua Bog State Nature Preserve.