The signs measure 75 × 80 cm, are mainly made of wood and have the characteristic shape of a stylised fir tree. They are painted yellow with a green and black border. Underneath a hammer and chisel symbol the type of site is described together with important information. The texts were researched and published from 1949 to 1981 by Herbert Dennert. The Upper Harz History and Museum Society maintain over 200 signs within an area of 100 km².