Twin Sisters Trail is a 14 mile out and back trail located near Cross Fork, Pennsylvania. The trail is rated as moderate and primarily used for hiking, walking, and trail running.
Not sure if this trail is able to be mountain biked but, I did. Very steep climb up to the summit but once on top of the mountain beautiful views! As well as easy biking on top. And the climb on the way down was sweet! Only problem I had was there were many down trees on the climb and on top that with the heavy mountain laurel made for finding a way around was difficult and climbing over some of the large trees was not easy. All in all worth the hike or bike to the top!
One of my favorite trails. Great view, no crowds. Completed many times.