07/03/2026
These blocks are from the top of the quarry. 20,000 years ago during the peak of the last ice age a huge glacier (almost a kilometer tall!) was moving southwards from Scotland. The ice sheet scraped and flattened the limestone, leaving scratches marking the direction of glacial movement, if you ignore the JCB bucket marks!
Just a small reminder of the journey Anglesey limestone has taken before arriving at your home.
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Mae’r blociau hyn o ben y chwarel. 20,000 o flynyddoedd yn ôl, yn ystod uchafbwynt yr oes iâ ddiwethaf, roedd rhewlif enfawr (bron i gilomedr o uchder!) yn symud tua’r de o’r Alban. Crafodd a chreu gwyneb fflat ar y calchfaen, gan adael crafiadau yn nodi cyfeiriad symudiad y rhewlifoedd, os anwybyddwch olion y bwced JCB!
Dim ond atgof bach o’r daith y mae calchfaen Ynys Môn wedi’i chymryd cyn cyrraedd eich cartref.
