This information has been developed from the publications:
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Location: | 600520. The site includes parts of the valley of the Glencairn Creek and extends for 6 kilometres north from Glencairn. | |
Access: | Glencairn Road. | |
Ownership: | Crown Land and private land. | |
Geology/Geomorphology: | The Glencairn Creek and Macalister River are separated by a north-south trending strike ridge, of Avon River Group Sediments. Whitelaw (1916) interpreted the Black Soil Gully and Glencairn Creek valley to be a former course of the Macalister River. This valley was abandoned when the Macalister was diverted to the east at its junction with the Caledonia River. The new stream has lowered its valley floor by over 150 metres below the level of its former course. | |
Significance: | State. This is an unusual example of stream diversion. The reasons for the deflection of the Macalister have not been investigated in detail, although Whitelaw (1916) suggested it was "probably .......... the result of a landslip". | |
Management: | Reservoir construction that would flow either of the main valleys of the site should not be permitted. |
![]() Old and new courses of the Macalister River at Glencairn Creek and Black Soil Gully (from Whitelaw, 1916) | ![]() |