Willoughby Marsh Conservation Area is a swamp ecosystem and one of the largest forested wetlands in the eastern part of the Niagara Peninsula.
Located at the head of Tee, Usshers, Lyons and Black Creeks, this Conservation Area protects an important source for these area waterways. This water source is also characterized as a wildlife area where a small organic basin and a slough pattern of gently rolling wet and drier pockets are dominated by maple and oak trees, buttonbush and meadowsweet, and some shallow cattail marsh, providing cover and feeding areas for many animals. Some of the animals seen here are: heron, evening grosbeak, northern harrier, Red-headed Woodpecker, Prothonotary warbler, white tailed deer and numerous amphibians.
This natural area provides a wilderness setting with no formal trails or facilities. Bird watching, seasonal hunting and passive recreational activities can be enjoyed at this site.