Joyce Kilmer Natural Area: A 77 acre tract of virgin white pine and hemlock located on Paddy Mountain, 6 miles west of Hartleton in Union County. 

The Hook Natural Area:  This area is a 5,119 acre tract located on the North Branch of Buffalo Creek, 3 miles north of Hartleton in Union County. A complete watershed is preserved in this area. Access is provided by a number of rugged foot trails.

Mt. Logan Natural Area:  This natural area is a 512 acre tract located east of Castanea in Clinton County. It contains old growth hemlock and an outcrop of Tuscarora sandstone.

Rosencrans Bog Natural Area:   This natural area is a 152 acre high mountain bog located north of Loganton along Cranberry Road in Clinton County. The area contains cranberry, mountain holly and high-bush blueberry.

Snyder-Middleswarth Natural Area: This 500 acre tract is located 5 miles west of Troxelville along the Swift Run Road in Snyder County. It contains virgin white pine, hemlock, and pitch pine. Good access is provided by foot trails.

Tall Timbers Natural Area: This 660 acre tract is located just west of snyder-Middleswarth along Swift Run. The area is covered with a second growth forest of oak, white pine, hemlock, and hard pine.

White Mountain Wild Area: This 3,581 acre tract is located southwest of the town of Weikert. It covers the east end of White Mountain, is bounded on the north by Penns Creek and on the south by Weikert Run. Many of the north and south slopes are covered with large rock outcroppings. These talus slopes are formed by weather resistant sandstone and are bleached white by the sun. Thus the name White Mountain. It is accessible only by the Long Path Trail, now part of the Reeds Gap Spur to the Mid-State Trail. The area shows little evidence of man's activities and will for the most part be kept in this undeveloped state.