Treppenhauer, Mountain summit in Sachsenburg, Frankenberg, Germany.

Treppenhauer is a mountain near Sachsenburg that rises approximately 351 meters above sea level. The slopes show visible signs of past mining work that shaped the land over centuries.

Mining for copper and silver started on this mountain during the 13th century and continued for several hundred years. This extraction activity was a major part of the region's economic development during medieval times.

The name Bleiberg belonged to a mining town founded on the mountain in the 13th century, abandoned by the mid-14th century and now a deserted site. The Treppenauer Stolln, driven from the Zschopau valley from 1740 to 1786, reached 1209 m and followed the main vein for 380 m.

The mountain sits about one kilometer west of Sachsenburg and can be reached fairly easily. Wear sturdy footwear since the terrain is hilly with uneven ground underfoot.

Bleiberg was not another name for the peak but a mining town founded on it in the 13th or 14th century; it was abandoned by the mid-14th century and is now a deserted site. The main vein was 1 to 1.5 m thick and consisted mostly of baryte and some quartz, with only traces of chalcopyrite.