List of National Natural Landmarks in Maryland

These are the six National Natural Landmarks in Maryland.

Name	Image	Date	Location	County	Ownership	Description
Battle Creek Cypress Swamp			Prince Frederick	Calvert	private	One of the northernmost sites of naturally occurring bald cypress 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	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	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	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.