Algerine Swamp Natural Area

Algerine Swamp Natural Area is an 84 acre protected area in Lycoming and Tioga Counties, Pennsylvania, United States. It is part of Tiadaghton State Forest, and has also been named a National Natural Landmark.

The Natural Area features black spruce and balsam fir trees, both of which are rare in Pennsylvania, and is centered on a glacial bog. The area includes other tree species that are more common to the north in Canada, as well as a population of pitcher plants. The area can be reached via the nearby Long Branch Trail, a short distance north of a junction with the long-distance Black Forest Trail.