From North Wales Gazette 9th December 1813:
"And to add to our melancholy list of casualties, on Tuesday week, the same Gentleman also held an inquisition in the parish of Llanberris, on the body of Thomas Williams, a miner, a very industrious man, who in attempting to reach a copper mine at Glogwyn Coch, one of the highest rocks in Snowdonia, along a narrow path, which at that time was covered with ice, he unfortunately fell down a tremendous precipice of near 300 feet and was literally dashed to pieces".