On the south summit, near the viewing point, a Nagel Column (Nagelsche Säule) has stood since 1865. It recalls August Nagel, the head of survey in Saxony in the 19th century. The survey was carried out using triangulation. Other trig points in the area are located inter alia on the Raumberg, the Lilienstein, the Cottaer Spitzberg and the Hoher Schneeberg. The column on the Großer Zschirnstein was lost around 1900. In May 2011 a replica was erected in its place.