National Natural Landmarks

Connecticut – completed 2024

Bartholomew’s Cobble (mostly part of MA)

Beckley Bog

Bingham Pond Bog

Cathedral Pines

Chester Cedar Swamp

Dinosaur Treadway

McLean Game Refuge

Pachaug-Great Meadow Swamp

Maine – completed 2024

Appleton Bog Atlantic White Cedar Stand

Carrying Place Cove Bog

Colby-Marston Preserve

Crystal Bog

Gulf Hagas

The Hermitage

Katahdin

Monhegan Island

Mount Bigelow

New Gloucester Black Gum Stand

Number Five Bog and Jack Pine Stand

Orono Bog

Passadumkeag Marsh and Boglands

Penney Pond and Joe Pond Complex

Massachusetts – completed 2023

Acushnet Cedar Swamp

Bartholomew’s Cobble

Cold River Virgin Forest

Fannie Stebbins

Hawley Bog

Lynnfield Marsh

Mt. Greylock Old Growth Spruce

North and South Rivers

Poutwater Pond

New Hampshire – completed 2022

Monadnock and Monadnock (two posts cover all hikes)

Nancy Woods

Pondicherry

Rhododendron Natural Area

Spruce Hole Bog

White Pitch Pines

New York

Albany Pine Bush Preserve

Chazy Fossil Reef – see Vermont

Dexter Marsh

Ellenville Fault – Ice Caves

Ironsides Island – closed to the public (2023)

Lakeview Marsh and Barrier Beach

Mianus River Gorge Preserve

Moss Island

Petrified Sea Gardens – closed to the public (2024)

Rhode Island – completed 2023

Ell Pond

Vermont – completed 2023

Barton River Marsh

Battell Biological Preserve

Camel’s Hump

Chazy Fossil Reef

Cornell Swamp

Fisher-Scott Pines

Franklin Bog

Lake Willoughby

Little Otter Creek Wildlife Management Area

Mount Mansfield