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Sb2 Deverall Hill

This information has been developed from the publications:

  • Sites of Geological and Geomorphological Significance in the Western Region of Melbourne (1986) by Neville Rosengren
  • Sites of Geological and Geomorphological Significance on the Coast of Port Phillip Bay (1988) by Neville Rosengren.
  • Sites of Geological and Geomorphological Significance in the Shire of Otway (1984) by Neville Rosengren.
Geological heritage sites, including sites of geomorphological interest and volcanic heritage sites, are under regular revision by the Geological Society of Australia, especially in the assessment of significance and values. Reference should be made to the most recent reports. See the Earth Science Heritage section of the Geological Society of Australia website (external link) for details of geological heritage reports, and a bibliography.

LocationSunbury - 912435. Shire of Bulla. North of Calder Highway 6 km southeast of Sunbury.

Sb2 - Deverall hill eruption point.

Access
Calder Highway

Ownership
Private land

Site Description
Deverall Hill is a steep volcanic hill with a circular depression at the summit surrounded by outward-facing ridges of lava. On the western slopes are twin lava ridges resulting from the last lava eruption of the volcano. Earlier and broader lava flows extend from the base of the hill towards the west and north. The flattened, rocky and circular summit and long slope to the west result from erosion of scoriaceous material of the original cone exposing the central plug of the volcano and the sides of the final lava flow that breached the cone.

A small disused quarry is on the lower southern slope of the hill.

Significance
State. The hiss is a classic example of the production of a flat-topped volcanic hill by erosion. It is an important example of a major volcanic form of the Newer Volcanics of Victoria.

Management
Class 2. No building or quarrying (apart from that necessary to service existing rural land uses) should be permitted above the 440 m contour.

References
Edwards, A.B. and Crawford, W. (1940).


Deverall Hill
SW1&2

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