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Latitude: 53.331 / 53°19'51"N
Longitude: -3.8479 / 3°50'52"W
OS Eastings: 277033
OS Northings: 383156
OS Grid: SH770831
Mapcode National: GBR 1YKX.QN
Mapcode Global: WH53S.VJTR
Entry Name: Great Orme Copper Mines
Scheduled Date: 26 January 1994
Source ID: 3189
Cadw Legacy ID: CN216
Schedule Class: Industrial
Category: Copper mine
Traditional County: Caernarfonshire
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 to 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.
The monument is of national importance for its potential to enhance our knowledge of prehistoric industry. It retains significant archaeological potential, with a strong probability of the presence of associated archaeological features and deposits. The areas themselves may be expected to contain archaeological information concerning chronology and mining techniques.
The scheduled area comprises the remains described and areas around them within which related evidence may be expected to survive.
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