The diversion weir was used for early irrigation purposes within the Werribee Gorge. The boulders to the left of this photograph clearly show the different mud tillits that make up the formation of these rocks. These boulders would weigh in around 200 to 300 tonnes.
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.
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.