The 1,325 acres (5.36 km2) Bearfort Mountain Natural Area is a part of the park, with Terrace Pond at 1,380 feet (420 m) near the top. The mountain forest includes swamp hardwood, hemlock and mixed hardwood and chestnut oak forest communities; some rock outcrops have a 360-degree view of the surrounding highlands.
2,167 acres (8.77 km2) Wawayanda Swamp Natural Area is an Atlantic white cedar swamp with a mixed oak-hardwood forest and a lake and Laurel Pond.
399 acres (1.61 km2) Wawayanda Hemlock Ravine Natural Area is a 300 feet (91 m) ravine formed by Doublekill Creek surrounded by a hemlock and mixed hardwood forest. The Appalachian Trail is located on the western edge of the area.