Guadalix River, in Miraflores de la Sierra, Community of Madrid, Spain
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/alvarogan/">Koramchad</a>
CC BY 2.0
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/alvarogan/316532855/">Flickr</a>