The ‘cuts’ and the lagoon in Limarinho resulting from the mining exploitation process perform the one of the most remarkable landscape expressions of the ancient mining activities on the Terva Valley. In Limarinho, the overwhelming scale of the open-pit mining is evident alongside the conducted extraction areas in the landscape, well attested by the ‘cuts’, the trenches and the remnants residual pyramids.
The open-pit excavation works followed a North-South direction and covered an area with over two square kilometres. This is also the area housing the largest identified and conserved vertical well, locally known as minóculo. The well has an estimated depth of around fifteen meters, with the inlets from the shoring being identifiable. Opposite the well is the end of a hall gallery where the presence of shore can also be seen alongside lamp niches.