Steinbruch West, im Volksmund auch "blaue Lagune" 
59269 Beckum ,Biotop
<a href="//commons.wikimedia.org/w/index.php?title=User:JaneMary024&amp;action=edit&amp;redlink=1" class="new" title="User:JaneMary024 (page does not exist)">JaneMary024</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>