The abandoned scoria quarry in the foreground reveals the core of the volcanic cone at Mt Elephant in Derrinallum. The erupted lava breached the cone at the left.

Mt Leura at Camperdown dominates the landscape, and from the top you can see a ring of other volcanoes stretching in a 270˚ arc to the north, east and south.

Red rock craters. 

Lake Gnotuk in southwestern Victoria is an example of a maar – a shallow crater formed by a volcanic eruption with little lava.

Mt Napier, south of Hamilton, as seen from the summit of Mt Rouse at Penshurst. Between these two significant volcanoes, the spreading lava has created what locals call ‘stony rises’.

Park ranger Peter Hill at the entrance to a lava cave at Mt Eccles, which is the source of a lava flow that extends 50km to the coast. 

Across Mount Gambier in South Australia, the Blue Lake and its three companion maar craters sit in a precinct of groomed grounds, tracks and lookouts.

Mt Elephant, a 240m conical breached scoria cone, formed by a dormant volcano, near the town of Derrinallum in south-western Victoria.