Awesome shot mate and one of the few mountains I've not climbed.
The volcanic plug is decomposing granite (from memory) and climbing is banned.
I've never actually stayed at O'Reillys. Visited, but not stayed. I've told the story of Bernard O'Reilly and the wreck of the Stinson
to my Partner and will, when the boys are old enough, to them.
Met his relatives though and the Family run their winery just outside Canungra.
https://oreillys.com.au/canungra-valley-vineyards/
A massive Heritage Home moved there from the Darling Downs.
But, just bla bla. Awesome photo of yours!