Name
Image
Date
Location
County
Ownership
Description
Battle Creek Cypress Swamp
April 1965
Prince Frederick 38°29′25″N 76°35′27″W / 38.490275°N 76.590773°W / 38.490275; -76.590773 (Battle Creek Cyprus Swamp )
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
1974
Woodmore 38°54′18″N 76°45′47″W / 38.90505°N 76.76304°W / 38.90505; -76.76304 (Belt Woods )
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
1964
39°31′53″N 79°28′55″W / 39.531389°N 79.481944°W / 39.531389; -79.481944 (Cranesville Swamp Preserve )
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
1980
Cecil
private
Outcrop of undeformed early Paleozoic metavolcanic pillow basalts .
Long Green Creek and Sweathouse Branch
1977
Baltimore
state (Department of Natural Resources)
A maturing beech-tulip poplar-white oak forest.
Sugarloaf Mountain
June 1969
Frederick 39°16′09″N 77°23′43″W / 39.269208°N 77.395248°W / 39.269208; -77.395248 (Sugarloaf Mountain )
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.