Barrington Volcano is located in New South Wales

The Barrington Volcano erupted near the present site of Mount Barrington between 44 and 54 million years ago. It caused a 700 cubic kilometre basalt flow, which covered much of the Barrington Tops plateau. The lava was up to one kilometre thick. The extensive rainforests in the area grow on much of the resultant red/brown soils.^[1] Gemstones such as zircon, sapphire and ruby were formed from the volcano.^[3] Nearby Careys Peak is considered a vent in this extinct shield volcano. The surrounding area is covered by sub alpine Snow Gum woodland, with rainforest on the escarpment edge and in fire free gullies.

• http://en.wikipedia.org/wiki/Barrington Volcano