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Selwyn's Rock EarthCache

Hidden : 6/29/2009
Difficulty:
1.5 out of 5
Terrain:
2 out of 5

Size: Size:   other (other)

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Geocache Description:


Selwyn's Rock

Inman Valley is located 14 kilometres from Victor Harbor on the Yankalilla Road. It is home to one of the South Australia's most geologically significant sites.


Glacier Rock

The Glacier Rock is also known as Selwyn's Rock, and is a 500 million year old boulder transported by a glacier from the vicinity of Victor Harbour. A huge glacial ice sheet covered the whole of the south coast 250 million years ago. During this period Glacier Rock was dragged across the Fleurieu Peninsula by the ice helping to groove and scratch rock surfaces between Victor Harbour and Inman Valley. The grooves, scratches and crescent shaped marks on the rock surface of the Inman Valley River bed are significant evidence of the direction of the ice movement. .

Glacier Rock was discovered in 1859 by ARC Selwyn a geologist for the South Australian Government. It was the first recorded discovery of glaciations in Australia. It was then rediscovered in 1897 by famous geologist Sir David Edgeworth and Dr Walter Howchin, from Sydney and Adelaide Universities. Dr Albert Terrones Mexico pronounced Glacier (Selwyn's) Rock as one of the largest glacial exposures in the world.

Glacier Rock attracts geologists from all over the world.


To get a smiley you must Answer 2 Questions and Take photo of yourself with the Glacier in the background.

Question 1 : what is the elevation top of platform ?

Question 2 : what is the elevation bottom of platform

Take a photo on the viewing platform with the glacier in the background

Additional Hints (No hints available.)