List of National Natural Landmarks in Pennsylvania

From List of National Natural Landmarks, these are the National Natural Landmarks in Pennsylvania. There are 27 in total.

Name Image Date Location County Description
Bear Meadows Natural Area 1965 Four miles south of Boalsburg, within Rothrock State Forest Centre
Box Huckleberry Site 01967-04-01April 1967 New Bloomfield Perry A 10-acre (4.0 ha) natural area which preserves a rare colony of box huckleberry over 1,000 years old. Part of Tuscarora State Forest.
Cook Forest 01967-11-01November 1967 Clarion Clarion, Forest, Jefferson A 8,500-acre (3,440 ha) state park notable for its spectacular stands of old-growth Eastern White Pine and Eastern Hemlock, many from around 1644.
Ferncliff Peninsula Natural Area 1973 Ohiopyle Fayette Part of Ohiopyle State Park, this peninsula is formed by a meander in the Youghiogheny River. It is a good example of a late successional forests in the Allegheny Mountains
Florence Jones Reineman Wildlife Sanctuary 1973 Near Carlisle Cumberland, Perry
Pine Creek Gorge 1968 Situated in approximately 160,000 acres (650 km²) of the Tioga State Forest, the Canyon begins south of Ansonia, near Wellsboro, along U.S. Route 6 and continues for approximately 47 miles (76 km) south. Tioga, Lycoming Known as the "Grand Canyon of Pennsylvania", a deep gorge carved by glacial meltwater. The maximum depth of the canyon is 1,450 feet (442 m) at Waterville, near the southern end. At Leonard Harrison and Colton Point State Parks, the depth is more than 800 feet and from rim to rim is approximately 4,000 feet (1200 m).
Hawk Mountain Sanctuary 1965 Berks A privately-owned sanctuary on an Appalachian ridge, known as an excellent vantage point for hawk migrations.
Hearts Content Scenic Area 1973 or 1977 Warren
Hemlocks Natural Area 1972 Within Tuscarora State Forest Perry
Hickory Run Boulder Field 1967 Kidder and Penn Forest Carbon
Lake Lacawac 1968 Near the southwestern portion of Lake Wallenpaupack Wayne
McConnells Mill State Park 1972 Perry and Slippery Rock Townships Lawrence
Monroe Border Fault 1980 Near Riegelsville Bucks
Nay Aug Park Gorge and Waterfall 1989 Scranton Lackawanna
Nottingham Park Serpentine Barrens 02009-01-01January 2009 Nottingham Chester A 651-acre (263 ha) county park on one of the largest outcrops of serpentine in the eastern US, which creates a savanna-like habitat with a number of unusual flora.
Presque Isle 1967 West of the city of Erie, in Millcreek Township Erie
Reynolds Spring and Algerine Swamp Bogs 1974 Primarily within Tioga State Forest Tioga, Lycoming
The Glens Natural Area 1968 Sugarloaf, Fairmount, Ross, Colley, and Davidson Columbia, Sullivan, Luzerne
Snyder Middleswarth Natural Area 1967 Within Bald Eagle State Forest in Spring Township Snyder
Susquehanna Water Gaps 1968 About four miles south of Liverpool; about a mile south of Millersburg; south to Harrisburg Cumberland, Dauphin, Perry Millions of years of erosive rock create impressive landforms of unique geologic heritage and outstanding natural beauty, as the Susquehanna River cuts through five ridges of the Appalachian Mountains north of Harrisburg.
Tamarack Swamp 1973 About seven miles north of Renovo Clinton
Tannersville Cranberry Bog 1974 Tannersville Monroe
John Heinz National Wildlife Refuge at Tinicum 1965 Located in Tinicum Township, the refuge is adjacent to the Philadelphia International Airport Philadelphia, Delaware
Tionesta Scenic and Research Natural Areas 1973 Located approximately seven miles west of Kane Warren, McKean
Titus and Wattsburg Bogs 1977 Approximately four miles to the southeast of Wattsburg Erie
Wissahickon Valley 1964 Located within Fairmount Park Montgomery, Philadelphia Tributary of the Schuylkill River which it joins in Fairmount Park, Philadelphia, near Germantown. Runs through Fort Washington State Park

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