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Sb4 Mount Aitken - Eruption Point

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 - 917418. Former Shire of Gisborne. South of the Calder Highway 7 km southeast of Gisborne.

Sb4 - The distinctive flat top and asymmetrical profile of Mount Aitken, Gisborne.


Access
Calder Highway

Ownership
Private land

Site Description
Mount Aitken (500 m) is one of the most prominent of the eroded volcanic hills between Sunbury and Gisborne. The form of the hill is similar to Red Rock and Mount Holden, having a more or less flattened top, rocky cliffs and ridges around the summit, and one long gentle slope down to the level of the surrounding plain. The outcrops are the last of the lava flows from the summit area of the volcano, the vent becoming infilled with this solidified lava and surrounded by a rim of scoria. Erosion has since removed the scoria, levelled the summit and obscured the vent of the volcano.

Significance
Local. This eruption point forms a part of the major volcanic sequence that produced the plains topography between Sunbury and Gisborne.

Management
Class 2. To retain the significant form of the hill, no further building construction should be permitted above the 440 m contour.

Related sites on VRO

  • Eruption Points of the Newer Volcanics (Rosengren 1994) - Mount Aitken
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