Note: While you can park at the trailhead DO NOT access from the trailhead on Rte 504. Per DCNR bikes can access this north portion off Tram Rd.
This is a fast, flowing downhill trail when going from Tram Rd to Rock Run South Loop. Coming back the other way is a reasonably steady climb too.
Also, note that the Allegheny Front Trail (AFT) does also continue on the opposite side of Rte 504 but that is not open to bikes or rideable. The AFT is closed to bikes between Rte 504 and Underwood Rd.
Access Info: Go down Tram Rd. to the second doubletrack grassy road on the right and follow it. You'll go around a gate and intersect the AFT at the top of a small rise.