Rubislaw Quarry has been put up for sale - years after a high-profile battle against new homes on the edge of the Aberdeen landmark.
Buy the Press & Journal says the asking price has not been made public.
In 2010, the hidden gem was acquired by former oil consultant Sandy Whyte and construction boss Hugh Black for a "significant sum".
But the owners' ambitions for a world-class heritage centre commemorating the granite industry have never materialised.
Developer Carttera has permission to build luxury flats along the edge of Europe's largest man-made hole.
It came despite Mr Black, and hundreds of locals, launching a campaign against the proposal.
Aberdeen was built from granite, and Rubislaw Quarry is largely where it came from.
It is estimated that over six million tonnes of granite were extracted from the quarry over a period of 200 years.
However, with buildings being increasingly built from cheaper materials, the last granite from Rubislaw was extracted in the early 1970s.
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