Minería del azogue y lavado de lanas en Usagre Historical milestone · Usagre, Campiña Sur, Badajoz Image of Usagre, not of the place itself. Between the 17th and 18th centuries, mercury (azogue) mines were worked within the territory; in the 18th and 19th centuries Usagre was also a center for washing fine wool destined for European markets. siglos XVII-XIX Photo: Gonzalo 11789 (CC BY-SA 4.0) What to see and do in Usagre