As part of the 2nd Scientific Workshop “Heritage and History of Mining”, which took place on October 3-4, 2020 in Ludwikowice Kłodzkie (Góry Sowie, SW Poland), two field sessions were conducted. The sites of the first of them, a pedestrian one, were located in Ludwikowice Kłodzkie. The first object shown was the Henryk adit (formerly Hellmuth), which was part of the 19th-century Glückauf Louis hard coal mine, incorporated into the Wenceslaus mine in 1914. The adit features a well-preserved brick wall housing and an explosives chamber from 1922. The Gontowa facility, an element of the Nazi RIESE complex, was built at the end of World War II. It is a system of two adits and drifts connecting them with a total length of 800 m. Elements of the ...