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,
Name Image Date Location County Ownership Description Bartholomew's Cobble Canaan Litchfield private Open 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 Bog Norfolk Litchfield private The southernmost Sphagnum-heath-black spruce bog in New England. Purchased by the Nature Conservancy in 1956. Bingham Pond Bog Salisbury Litchfield private A rare undisturbed northern black spruce bog, which is missing the more common Sphagnum moss. Cathedral Pines Cornwall Litchfield private (The Nature Conservancy) 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 Swamp Chester Middlesex mixed- state, municipal Known for its Atlantic white cedar swamp within the Cockaponset State Forest. Dinosaur Trackway Rocky Hill Hartford state One 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 Areas Granby Hartford private forest in multiple tracts has a very diverse group of species as well as evidence of glacial activity. Pachaug-Great Meadow Swamp Voluntown New London mixed- state, private Known for the Atlantic white cedar swamp inside the Pachaug State Forest. Includes sections of the Pachaug River and the Great Meadow Brook.
See also List of National Historic Landmarks in Connecticut
External links National Natural Landmarks in Connecticut