Minto Crags / Whimpullin in Winter's Colours

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Minto Crags (known by aboriginal residents as Whimpullin) is an impressive ring dyke of fine grained rhyolite. It is part of the innards of the Tertiary volcano known as the Main Range Volcano.

This ring dyke along with the other intrusion features in the area such as plugs, radial dykes, sills and domes are the more resistant innards of the complex shield volcano. These intrusions punctured the sedimentary coal measures of the Marburg and Walloon series.

Minto Crags/Whimpullin has been dated as being of Oligocene age.

I know of no other ring dyke system in Australia as spectacular and as easy to interpret as this one. There is a swarm of small ring dykes on the flanks of Mt Alford, about 10 kms north of Minto Crags / Whimpullin.

Ian Stehbens

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Comments (10)

bdeh on March 23, 2013

Beautiful scenery and soft colours Ian. Thanks for the information. LIKE! Greetings Berend

ebi lutze on March 30, 2013

Hi Ianrfrom the Group A1-Unique Australia. I love that country up there, beautiful shot in red. L. Regards Ebi

Ian Stehbens on March 30, 2013

Greetings Berend,

Thanks for your ongoing interest in the stories and information I provide from time to time. I find the volcanic geology of this area very interesting, and relatively easy to reconstruct even though so much has been stripped away through time.



Ian Stehbens on March 30, 2013

Hi Ebi,

There's so much variety and colour around, and plenty that is majestic as well. And right now there's so much water that we landscape photographers can have much joy.



Cris Brazzelli on March 31, 2013

Ian, are the Minto Crags on private land? Did you get special permission to get there?

Ian Stehbens on April 1, 2013

Yes Cris, the crags are on private land but access can usually be negotiated. Well worth exploring and there are plenty of climbs as there are 4 Kms cliffs on both sides of the dyke.


Cris Brazzelli on April 1, 2013

I read somewhere that the land owner is reluctant to give access permission to climb. I'll be very interested to organize a small expedition if this is not offensive to Traditional Owners.

lizab on April 2, 2013

Magnificent light, thanks for sharing!!

Ian Stehbens on April 7, 2013

I would imagine Cris that your respectful approach and respect for the country as well as your climbing competence would be sufficient to convince a farmer to allow you access.


Ian Stehbens on April 7, 2013

Glad you appreciate it, Liz.

Such golden light makes for great landscape photography.


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Photo details

  • Uploaded on March 21, 2013
  • © All Rights Reserved
    by Ian Stehbens