Underground mines in Portugal

thumb|Mining Concession C-18 Panasqueira Minas da Panasqueira or Mina da Panasqueira (English: 'Panasqueira mine') is the generic name for a set of mining operations in Portugal between Cabeço do Pião (Fundão municipality) and the village of Panasqueira (Covilhã municipality), which has operated in a technically integrated and continuous manner practically since the discovery of tin and tungsten ore there. Subsequently, it was agglomerated into a single administrative entity called Couto Mineiro da Panasqueira (English: 'Panasqueira Mining Reserve') which had its last demarcation on 9 March 19