Since 1850 limited groups of specialised workers from Styria, Austria, followed by German miners from Freiburg began to settle temporarily in the Iglesiente in particular in the mining areas of Monte Vecchio, Guspini and Ingurtosu . Some German influenced building and toponym is still visible in this area. The contemporaneous migration flow from the Italian peninsula towards the Sardinian mining areas of Iglesiente was more considerable and more stable ; these miners came mostly from Lombardy, Piedmont, Tuscany and Romagna. According to an 1882 census realised by the French engineer Leon Goüine, in the south-western Sardinian mines worked 9.780 miners, 3.571 of which were of mainland Italian origin; most of them settled in Iglesias and "frazioni" .