Blocking outflow pipe from lead & zinc at Portman, Spain
31 July, 1986 
GP015OP 
Blocking outflow pipe from lead & zinc at Portman, Spain 
★★★★★★★ (A) 
Blocking outflow pipe from lead & zinc at Portman, Spain
31 July, 1986 
GP0H1G 
Blocking outflow pipe from lead & zinc at Portman, Spain 
★★★★ (E) 
Outflow from lead & zinc mine at Portman into Mediterranean, Spain.
31 July, 1986 
GP01ERT 
Outflow from lead & zinc mine at Portman into Mediterranean, Spain. 
★★★★ (E) 
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