These are the six National Natural Landmarks in Maryland.
Name Image Date Location County Ownership Description Battle Creek Cypress Swamp Prince Frederick Calvert private (The Nature Conservancy) One of the northernmost sites of naturally occurring bald cypress (Taxodium distichum) trees in North America, and the only large stand of the trees on the western shore of Maryland. The site also contains a wide range of plant and animal life. Belt Woods Woodmore Prince George's state (Department of Natural Resources) One of the few remaining old-growth upland forests in the Atlantic Coastal Plain biophysiographic province. It is an example of upland hardwood forest dominated by tulip poplar and white oak. The Woods support a diverse bird population, including neotropical migrants. Cranesville Swamp Nature Sanctuary Garrett private (The Nature Conservancy) A natural bowl where cool, moist conditions yield plant and animal communities more common in northern latitudes. Extends into Preston County, West Virginia. Gilpin's Falls Cecil private Outcrop of undeformed early Paleozoic metavolcanic pillow basalts. Long Green Creek and Sweathouse Branch Baltimore state (Department of Natural Resources) A maturing beech-tulip poplar-white oak forest. Sugarloaf Mountain Frederick Frederick, Montgomery private An outlier to the east of the main mass of the Catoctin Mountain, or a root remnant of the ancient Appalachia land mass.
See also
List of National Historic Landmarks in Maryland
External links NPS NNL Maryland Webpage