Water-worn Limestone (WHC1) 6 – Water-worn Carboniferous Black Rock Limestone Sub Group layers with water-filled basin and pebbles on the Worms Head Causeway in Gower, South Wales.
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Water-worn Limestone (WHC1) 6 – Water-worn Carboniferous Black Rock Limestone Sub Group layers with water-filled basin and pebbles on the Worms Head Causeway in Gower, South Wales.