http://pngmininglegacies.wordpress.com/mines/panguna/bouganville_2009_11/ Pics of this mine have done the rounds on the net for years- now its back again- Rio Tintos Panguna site, Apparantly the worlds largest open cut copper and gold mine which was desecrated by the local inhabitants / rebel army in 1989.
Looks like a very interesting site to have a poke about- certainly makes for interesting pictures..