a1 The University of Manchester
Recent studies of Roman gold-mining, in Britain at Dolaucothi, and in Spain at las Médulas, Montefurado and Puerto del Palo, have shown that many valuable results can be obtained at such sites by a careful programme of field-work. The present article is the result of field-work in the region of the Rio Duerna in 1970. It was also possible to undertake a special in-depth survey of one of the mines, the working known as los Castellones. This mine was chosen as one of the most important and interesting in the valley.
Previously attention has centred on the hard-rock mines of the south of Spain and Portugal, and there are few sources referring to the gold-mines of the north in any but very general terms. O. Davies has compiled a list of most of them and thus rendered a valuable service, in spite of some errors. Strangely he does not give the most comprehensive source as his reference for the mines of the Duerna area (which he calls ‘Quintanilla’ on his map IIIa), although he makes use of it elsewhere.