This rock formation is the floor of the Werribee River. It has been dated back 450 million years. The steel plates shown across the top of this rock formation were used for irrigation purposes in the township of Bacchus Marsh. The plates were used to raise the water level, and help control water levels.
Looking from the base of the Werribee Gorge this apprears to be a volcano but in reality is a photo taken from the bottom of the Gorge - just an illusion. The ridges show soil erosion as a result of flooding.
The Werribee River in the base of the Werribee Gorge near Myrniong. The rocks in the river contain white stones mixed with lava, and the white rocks show scratch marks that can be identified under an electron microscope. They indicate these scratch marks were made with pressure from a glacier. These rocks can be found in several other places in the Werribee River over its entire lengh.
These are trees that have come to the Gorge since white settlement. They include blackwood trees and trees that are often found in the Mallee. A possible reason for this is seeds deposited from bird droppings.