Hi Richard,
It is the wreck of a DC3 up near Bamaga, Cape York. It crashed there in 1945. Apparently, whilst circling to land at the Bamaga airstrip during the early hours of the morning, it struck the hill near the strip and crashed.
There are a couple of wrecks up around the airfield there as it was pretty active during the Second World War. You can still see the wreck of the Bristol Bomber and if you feel like braving the mozzies, you'll find a Kitty Hawk as well. Down in Mareeba, there is a great private military museum which has a P39 AiraCobra which was partially restored after crash landing up on Cape York and then being destroyed by the military as they blew all these aircraft's noses off, destroying any munition left in them.
I don't just photograph crashed aircraft either!
In my spare time, I volunteer in our Rural Fire brigade and specifically work with aviation. I was over near the north coast of NSW recently helping on an airbase and snuck out onto the strip early one morning to grab some photos. This was one of them!