Map of Bulgarian territories in <a href="https://en.wikipedia.org/wiki/Southern_Dobruja" class="extiw" title="en:Southern Dobruja">Southern Dobruja</a> ceded to the Romania after the <a href="https://en.wikipedia.org/wiki/Treaty_of_Bucharest_(1913)" class="extiw" title="en:Treaty of Bucharest (1913)">Treaty of Bucharest</a> in 1913 (in Bulgarian)
<a href="//commons.wikimedia.org/wiki/User:Ikonact" title="User:Ikonact">Ikonact</a> &amp; <a href="//commons.wikimedia.org/wiki/User:%D0%9F%D0%B0%D0%BA%D0%BA%D0%BE" title="User:Пакко">Пакко</a>
CC BY-SA 4.0
<p><span class="int-own-work" lang="en">Own work</span>
</p><p>Data:
</p>
<ul><li>SRTM3</li>
<li>OpenStreetmap</li></ul>