Green dolerite erratic carried on Irish Sea Glacier from Preseli to Mumbles c 19000 years ago. Stone such as this was used to construct Stonehenge.

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Previously unrecorded I photographed this boulder in early 2022 . Hailed by Brian as the 'greatest glacial discovery this century its location is highly significant for the origins of the Stonehenge bluestones.

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Size: 8256px × 5504px
Location: Gower, Swansea,,Wales
Photo credit: © Holden Geology / Alamy / Afripics
License: Licensed
Model Released: No

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