The tunnel mouth hole of the New Blessing God Stolln was secured around 1992 by a mountain security company with steel construction in the area of the quarry stone masonry …
Mouth of the Michaelis tunnel in the Mortelgrund near Sayda in the Ore Mountains valley. The mine was built on a vein bearing copper and silver and produced a certain yield, especially in the 17th and 18th centuries.
The mining area around Clausnitz goes back to 1460. From 1860 to 1866 the St. Michaelis tunnel was excavated in order to reach the King Solomon's pit and drain the …