National Natural Landmarks
One of the highest keys in the Florida Keys chain, Lignumvitae Key provides a wide range of habitat, from wave-washed exposures of Key Largo limestone to mangrove swamp. Located within Lignumvitae Key Botanical State Park, the site is the largest and best example of tropical hammock forest known in the United States.
Location: Monroe County, FL
Year designated: 1968
Please remember, National Natural Landmarks (NNLs) are not national parks. NNLs are owned by a variety of public and private entities and allowing visitation is at their discretion. Many NNL sites maintain public websites where additional information may be found.