List of National Natural Landmarks in Connecticut


There are eight National Natural Landmarks in Connecticut. They represent the geological and ecological history of Connecticut, including glacial features such as bogs, old growth forests and swamps. There are also well preserved dinosaur tracks,
NameImageDateLocationCountyOwnershipDescription
Bartholomew's CobbleCanaan LitchfieldprivateOpen space preserve, agricultural preserve, and bio-reserve primarily located in Ashley Falls, Massachusetts and edging into Canaan, Connecticut. The preserve contains over 800 plant species including North America's greatest diversity of ferns. It is open to the public with hiking trails and a visitors center.
Beckley BogNorfolk LitchfieldprivateThe southernmost Sphagnum-heath-black spruce bog in New England. Purchased by the Nature Conservancy in 1956.
Bingham Pond BogSalisbury LitchfieldprivateA rare undisturbed northern black spruce bog, which is missing the more common Sphagnum moss.
Cathedral PinesCornwall Litchfieldprivate A large tract of old-growth white pine and hemlock forest owned by the Nature Conservancy which was mostly destroyed by tornadoes in 1989.
Chester Cedar SwampChester Middlesexmixed- state, municipalKnown for its Atlantic white cedar swamp within the Cockaponset State Forest.
Dinosaur TrackwayRocky Hill HartfordstateOne of the largest dinosaur track sites in North America, with a fine display of early Jurassic fossil tracks in sandstone from about 200 million years ago.
McLean Game Refuge Natural AreasGranby Hartfordprivate forest in multiple tracts has a very diverse group of species as well as evidence of glacial activity.
Pachaug-Great Meadow SwampVoluntown New Londonmixed- state, privateKnown for the Atlantic white cedar swamp inside the Pachaug State Forest. Includes sections of the Pachaug River and the Great Meadow Brook.