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GREAT ORME COPPER MINE; TY GWYN COPPER MINE

Site Details

© Copyright and database right 2019. All rights reserved. Ordnance Survey licence number 0100022206

NPRN 33779

Map Reference SH78SE

Grid Reference SH7707683100

Unitary (Local) Authority Conwy

Old County Caernarfonshire

Community Llandudno

Type of Site COPPER MINE

Broad Class INDUSTRIAL

Period Multiperiod

Site Description The Great Orme Copper Mines above Llandudno have an extensive complex of surface and underground workings exploiting copper ores in soft, easily worked strata. The true extent of mining operations here is unknown but it is believed to exceed 24,000 square metres, incorporating passages totalling more than five kilometres and penetrating a depth of seventy metres.

Archaeological evidence from the fill of the galleries include well-preserved bone tools and broken hammer stones. Charcoal was also found and radio-carbon dates from it have led to suggestions of Bronze Age beginnings for mining at this location. Spoil dumps and capped shafts are visible, dating from the nineteenth century.

D.K.Leighton, RCAHMW, 7 September 2004 (edited 14 November 2011).

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