Level Two Colour:White A Basic Oxygen Steelmaking converter

A Basic Oxygen Steelmaking converter mid-charge: molten iron and scrap collide in a cascade of sparks and white light at Port Kembla Steelworks

The 5-cylinder 2-stroke Polar diesel fills the right of the engine room

has gathered decades of dust

its steel-framed mass placing it among the defining structures of Australia's largest crude steel production plant

Level Two Colour:White A Basic Oxygen Steelmaking converterTiered excavation terraces step down through the dolerite walls of Hornsby Quarry, the void now holding still water at its base. Quarrying here from around 1905 until 2002 cut more than 100 m through a Jurassic volcanic neck, the largest diatreme exposure in the Sydney Basin. Part of the Hornsby Quarry series.