The wool industry of Castellterçol Historical milestone · Castellterçol, Moianès, Barcelona Image of Castellterçol, not of the place itself. At the end of the eighteenth century the wool work in the villa came to exceed in volume that of Sabadell and Terrassa, with looms spread through the houses. The activity marked the urban fabric and survived transformed into the modern textile industry. siglo XVIII Photo: Friviere (CC BY-SA 3.0) What to see and do in Castellterçol