Trench of the drain of Thelersberger Stolln (Thelersberg Adit) flowing into a minor tributary of the <a href="https://en.wikipedia.org/wiki/Gro%C3%9Fe_Striegis" class="extiw" title="en:Große Striegis">Großen Striegis</a> (Big Striegis) with visible ochre colouring due to washed out minerals
<a href="//commons.wikimedia.org/wiki/User:Malenki" title="User:Malenki">malenki</a>
CC BY-SA 3.0
<span class="int-own-work" lang="en">Own work</span>