Link Trail (Backpacking) is a 72 mile point-to-point trail located near Fort Loudon, PA and is rated as difficult. The trail is primarily used for hiking and is accessible from April until October.
I think this should be called the Tuscarora Trail which is a spur trail to the Appalachian Trail. Two miles of it goes through Cowans Gap State Park. From the main parking lot you can take the trail south to a beautiful overlook of Path Valley and Franklin County (about 9 miles out and back). Or you can take the trail south until Geyer trail to Cameron trail then to Plessinger Trail which will get you back to your car (about 5 miles). There are two pretty steeps areas on both these paths and the trail is rocky at times.
We only hiked 6 mikes of this link trail but the back half was straight up a mountain side with a 40 pound backpack in the rain. Other than that the mountain side scenery overlooking the park was amazing.