Antigas Minas de Volfrâmio da Borralha

The former Borralha mining estate encompassed the parishes of Salto and Venda Nova, as well as the parish of Campos, already in the municipality of Vieira do Minho. It comprised 36 concessions, totaling approximately 1,788 hectares. Of these concessions, 28 were for tungsten and tin, ten for tin, and two for tungsten, copper, and silver. These mines employed thousands of people, transformed and invigorated the area, and gave it national and international visibility.