It is in NSW
It is not on the Ballina line
Neither Luadra, Mangoplah, where the Colingullie - The Rock road crosses the Kywong line heading North from the Rock, nor out Westby way.
To get to any of the places listed in the last paragraph from Sydney by rail you would have travelled over or close to this location but it is a fair way from any of them.
It is within two kilometres of an active and very well used railway line and the photo was taken from a well used public road.