Columbia subject headings:
Harvard subject headings:
Bronze age--Great Britain
Bronze age--Ireland.
Copper mines and mining--Great Britain--History.
Copper mines and mining--Ireland--History.
Excavations (Archaeology)--Great Britain
Excavations (Archaeology)--Ireland
Great Britain--Antiquities.
Ireland--Antiquities.
Princeton subject headings:
Bronze age--Great Britain.
Bronze age--Ireland.
Copper mines and mining--Great Britain.
Copper mines and mining--Ireland.