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158. Loch - McTaggart Falls

This information has been developed from one or more of these publications:

  • Sites of Geological and Geomorphological Significance in the Westernport Bay Catchment (1984) by Neville Rosengren.
  • 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 Environmental Significance in the Flood Plain of the Upper Yarra Valley Region (1983) by Neville Rosengren, Douglas Frood and Kim Lowe (as part of a study of Sites of Environmental Significance by the University of Melbourne for the then Upper Yarra Valley and Dandenong Ranges Authority).
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.

Location:Jeetho - 851496. Four kilometres south-south-west of Loch.

Image: Sites of Significance Port Phillip Bay
Undissected plateau area (A) at Anderson Hill. Arrows show gorge at edge of plateau.

Access:

Anderson Hill road.

Ownership:

Private land.

Geology/ Geomorphology:

The area adjacent to Anderson Hill is a plateau averaging 250 metres above sea level. It is one of the largest of the elevated planar areas in the Strzelecki Ranges and provides a contrasting topography to the typically deeply dissected and 'all slopes' terrain of the south-eastern part of the Western port catchment. The several small streams that drain this area attain abrupt changes in gradient at the plateau margin and on the western side flow in Mesozoic bedrock channels. At this site, the stream has developed a 200 metre series of steep cascades which terminate as a 20 metre vertical waterfall. The Mesozoic rocks are predominantly sandstones with intraformational or slump conglomerates. They dip gently to the south-east and are strongly sheared. Stream potholes have developed along the lines of the shear planes.

Significance:

State. This is the major inland valley bedrock exposure. It is an unusually steep valley sector and the waterfall and cascade development on Mesozoic rocks is unique in the study area. It is one of the few such gorge sectors on Mesozoic rocks in Victoria.

Management:

Class 1. Reservoir construction, quarrying or any form of water control of the small catchment should be prohibited. An access pathway is needed to the site from a public road and the site should be purchase from private landholdings for public ownership.

Image: Sites of Significance Port Phillip Bay
Twenty-metre high falls and gorge at the edge of Anderson Hill plateau.
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