The penal detachment at the Varilongo mine Historical milestone · Santa Comba, Xallas, A Coruña Image of Santa Comba, not of the place itself. During the Second World War, when the Varilongo mines came under German management due to the strategic interest of wolfram, a penal detachment operated alongside them, in which the Franco regime forced prisoners to work, many of them prisoners of war. 1942-1944 Photo: Miguel Branco (CC BY-SA 4.0) What to see and do in Santa Comba