| Hallett Cove Conservation Park | |
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IUCN Category III (Natural Monument)
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| Nearest town/city | Adelaide |
| Area | 0.51 km² |
| Established | 1976 |
| Managing authorities | Department for Environment and Heritage |
| Official site | Hallett Cove Conservation Park |
Hallett Cove Conservation Park is a conservation park in Hallett Cove, South Australia. It is located on the shore of Gulf Saint Vincent, 22 km south of central Adelaide.
Aboriginal stone implements were first discovered in Hallett Cove in 1934 with more than 1,700 artefacts being collected over a period of 30 years. Farming began in what is now the eastern section of the park in the 1850s.
Professor Ralph Tate realised that South Australia had been subjected to an ice age when in 1875 he discovered the area's smoothed and striated glacial pavement. Subsequent geological work demonstrated that during the Permian, Australia was closer to the south pole than today while part of the Gondwanan supercontinent. During that time the south-western two-thirds of Australia, including much of South Australia was covered by an ice sheet.
In 1957 Professor AR Alerman from the University of Adelaide wrote to the National Trust recommending that the glacial pavements along the coastal cliff tops of Hallett Cove be preserved. For the next 19 years conservationists fought against housing developments until 1976, when the park was dedicated for the protection of features of geological and historic interest.
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