Flag of Río Negro Province, Argentina.
Daniel Cuomo <sup id="cite_ref-1" class="reference"><a href="#cite_note-1">[1]</a></sup> The flag was chosen after a contest where more than 160 works were presented. <br> (Vector graphics image by <a href="//commons.wikimedia.org/wiki/User:Hellerick" title="User:Hellerick">Hellerick</a>)
CC BY 4.0
SVG based in the picture from <a rel="nofollow" class="external text" href="http://www1.rionegro.com.ar/diario/2009/03/27/1238122482165.php">here</a>