The photo shows glacial striae or scratch marks produced as the ice passed over the rocks, trapped debris within the ice abrading the surface leaves the tell-take scratches. The glacial striae was revealed in temporary road works. There is now little or no trace of the striae (2010) because of weathering.
No EXIF information is available
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Keywords:1964, conwy, cymru, devensian, geology, glaciation, ice age, ice age, snowdonia, striae, sychnant, wales
