river Arda (rd line), river Mariza (blue line) |Source=based on the map [[:Image:Balkan_topo_de.jpg|Balkan_topo_de.jpg]] whitch bases on the map [[:Image:Balkan
DescriptionGreece - Delta of Evrosriver - panoramio - Michael Paraskevas.jpg Greece - Delta of Evrosriver Date Taken on 8 April 2007 Source https://web