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8.10 A/B Carlisle River Tributaries - Reference Catchments

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 (external site) section of the Geological Society of Australia website for details of geological heritage reports, and a bibliography.

Location:8-125223 (8A); 8-150230 (8B).

Access:

From Great Ocean Road at Pile Siding.

Ownership:

Crown land.

Geology/Geomorphology:

These two small catchments form part of the headwaters of the Carlisle River. They drain on the northern slope of the main ridge that divides the Gellibrand and Aire Rivers, the two largest drainage basins in the Otway Ranges. They originate in the highest rainfall area in Victoria, (Weeaproinah 1 928 mm, Beech Forest 1 731 mm) and support a relatively undisturbed forest association dominated by mountain ash, mountain grey gum and messmate. Beech forest occurs on the valley floors. The catchments comprise valuable reference sites to illustrate drainage basin development in a high rainfall region because they have been minimally disturbed by forest operations and land clearance.

Significance:

State. As the highest rainfall catchments in Victoria, these sites are important reference areas for the study of runoff generated in forested catchments. They could provide base data to allow accurate determination of potential water yield from the Otway region.

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