<a href="https://en.wikipedia.org/wiki/Trail_blazing" class="extiw" title="en:Trail blazing">Tail blaze</a>, orientation mark of "Eselsweg" hiking path in the Spessart mountains, not far from "Echterspfahl", photo shot by myself, GNU-FDL
<a href="//commons.wikimedia.org/wiki/User:Maulaff" title="User:Maulaff">Maulaff</a>
CC BY-SA 3.0
<span class="int-own-work" lang="en">Own work</span>