Summary: | Work started shortly after conquest in the 1st century then lasted until the 3rd century. Two main areas worked Corta de Ribeirinha (370m in length, 2.5 million m3 removed) and Corta de Covas (430 m in length 2.3 million m³ removed). Peak extraction dates to first half of second century. Remains which may be part of a water powered ore crushing machine have been found. |