This image shows the Quergraben near <a href="https://en.wikipedia.org/wiki/Altenberg,_Erzgebirge" class="extiw" title="en:Altenberg, Erzgebirge">Altenberg</a> in the <a href="https://en.wikipedia.org/wiki/Ore_Mountains" class="extiw" title="en:Ore Mountains">Ore Mountains</a>. The Quergraben was built ~ 1550 to convey water to the tin mines in Altenberg.
<a href="//commons.wikimedia.org/wiki/User:Norbert_Kaiser" title="User:Norbert Kaiser">Norbert Kaiser</a>
CC BY-SA 3.0
<span class="int-own-work">Self-photographed</span>