The Schuylkill River Trail if ever completed will be a spectacular trail from the headwaters of the Schuylkill in Pottsville, PA all the way to Philadelphia. The trail utilizes abandoned railroad as well as the remains of the former Schuylkill Canal. As of now the trail is in pieces making a continued thru trek near impossible (unless your a good road cyclist who loves hills).
Valley Forge to Oaks
Valley Forge to Conshohocken
Conshohockento Manayunk to Phoenixville and back to Conshohocken
Pottstown to Reading