The Super Pit is the biggest open pit gold mine in Australia. It is 3.5 kilometres long, 1.5 kilometres wide and more than 600 metres deep and draws thousands of tourists to the Goldfields each year. By the time its projected mine life ends in 2019, the Pit will reach a depth of around 700 metres. After open pit mining ends, current plans see stockpiles of low grade ore processed until 2029.
If you look very closely, at the image of the Super Pit, you will see machinery at the bottom. The diggers are the same size as the one in the bottom image. To add some perspective, the fence in front of it is around 2.5 metres high.