| Mantua Bog State Nature Preserve | |
| Map: | USA Ohio#USA |
| Location: | Mantua Township, Portage County, Ohio |
| Nearest City: | Mantua |
| Area Ha: | 104.8 |
The Mantua Bog State Nature Preserve (or Mantua Swamp) is a protected wetland in Mantua Township, Portage County in the U.S. state of Ohio. It was designated a National Natural Landmark in 1976[1] [2] and a state nature preserve in 1990.[3] [4] The national landmark designation encompasses which includes Marsh Wetlands State Nature Preserve, in addition to Mantua Bog State Nature Preserve.[5]
The nature preserve includes different types of wetlands including swamp forest, boreal bog, and cattail marshes. Twenty-four state-listed plants have been identified in the bog including autumn willow (Salix serissima), bunchflower (Melanthium virginicum), and cranberry (Vaccinium oxycoccos). In 2000, the Ohio Odonata Survey found a breeding population of the brush-tipped emerald dragonfly (Somatochlora walshii), a species not previously known to exist in Ohio.[6] [7]
Access is by permit only (from the Division of Natural Areas and Preserves) due to the sensitivity of the wetland.