The region surrounding Ehrenfriedersdorf is one of the oldest medieval tin ore mining areas in Germany. Tin ore was mined here from the beginning of the 13th century. With the development of new water pumping technology, the Ehrenfriedersdorfer Kunstgezeug, mining restarted in the 16th century after a temporary halt. The patented process was subsequently applied in the entire mining industry. Numerous surface installations from this second flourishing of mining are preserved.