The typical route to the Old Rag Summit is via the Summit Ridge Trail. Most hikers climb the ridge, and then return to their cars via the Weakley Hollow fire road. For this particular trip, our group intended to do some class 5.0 climbing near the summit, and then camp near the mountain, so we took the fire road instead of the ridge trail.
The fire road ends after about 2 miles, and connects with the Saddle trail which consists of a series of switchbacks to the summit. The scenery along the fire road is very wooded, but as you approach the Saddle trail, you will have some nice vistas.
I find this hike to be a bit tiring because it is uphill and direct the whole way. I prefer the ridge trail which has a balance of hiking and climbing to keep my mind off of fatique.
All in all this is a good trek for someone that wants to bag the Old Rag summit, and not get their knees dirty.