The border between <a href="//commons.wikimedia.org/wiki/Brazil" class="mw-redirect" title="Brazil">Brazil</a> (Chuí) and <a href="//commons.wikimedia.org/wiki/Uruguay" title="Uruguay">Uruguay</a> (Chuy).
<a href="//commons.wikimedia.org/wiki/User:Dantadd" title="User:Dantadd">User:Dantadd</a>
CC BY 2.5
<span class="int-own-work" lang="en">Own work</span>