Top 20 Caves バレンシュテットでの

Sound cavity is about 20 m long and relatively low

One of the 11 medieval field watchtowers in the city of Quedlinburg. The field watchtowers were built around 1300 to guard the Quedlinburg fields. The exact location and type of building are not known. It is also not known when the watchtower, known from a few entries in the Quedlinburg city council accounts, was demolished. The name is said to come from "lého", which means "burial mound". The site fell victim to sand mining on the Lehofsberg. Source: https://www.wartenverein.de/beschreibung-der-feldwarten/lehofwarte/

A mine was probably built here in the 16th century to mine copper and iron ore. However, fluorspar, chalcopyrite, arsenic pyrite and galena were mined. After it was closed in the 17th century, the mine fell into oblivion and was only rediscovered in the 1870s when gravel was extracted for road construction. The Magdeburg researcher Lessing then explored the cave, but the water in the shafts was up to 25 m high. After it was filled in, a waterworks was built here at the beginning of the 20th century, but it was destroyed by a rockfall just a few years later. In the 1950s, the Lessing Cave was searched for uranium-containing ore. The proportion of this radioactive metal was, fortunately for the town, too small. Today the cave serves as a refuge for bats and is therefore under special protection. Source: https://www.quedlinburg-info.de

The right tunnel can be accessed for about 40m. The deeper mine workings are flooded and the other two tunnels are filled. The Lessing Cave is also opened up every year for the "hike on the trail of mining". Source: https://harzklub-bad-suderode.de

Beautiful view of Quedlinburg and the surrounding area. Stamp office of HWN Runde Quedlinburg. Be careful, it's loose sand and no grid.

The Pioneer Tunnel is a stop on the Selketalstieg between Alexisbad and Mägdesprung and is located on the east side of the picturesque Selke Valley. This artificial, around 10 meters long and relatively low passage was driven through the rock in May 1900 within a few days. The hiking trail leads through here. There is no alternative route over or around the rock, so if you don't want to turn back you have to squeeze through the narrow tunnel. On the south side of the tunnel you have a beautiful view of the Selke Valley and the surrounding mountains. Source: https://www.harzlife.de/bilder/pioniertunnel.html

Mining history with HWN stamp box and special cancellation

The pit is located about 800 m from Straßberg in the valley of the Glasebach. The show mine is very well signposted in Straßberg. From the car park you can go past the Radstube to the stamping point at the "Alten Glasebacher Stollen".