Anyone doing the Long Angle gully track between Winmalee & Blaxland should take a bit of care going down the concrete hill just after the Rickard Rd exit.
Just near the bottom if this (extremley fast) hill, the concrete has developed a hole at one of the expansion joints. The hole is right next to where the old 4WD track comes back to the main track.
Stick to the left hand side heading down and you`ll be OK.