Dunav maps by country, region & sub-region

Bulgarian Sub_Regions [Sopluk, Kyustendil]
Bulgarian Sub_Regions [Sopluk, Pernik]
Bulgarian Sub_Regions [Sopluk, Sofia]
Bulgarian Sub_Regions [Trakia_East, Burgas]
Bulgarian Sub_Regions [Trakia_East, Jambol]
Bulgarian Sub_Regions [Trakia_East, Sliven]
Bulgarian Sub_Regions [Trakia_East, Stara_Zagora]
Bulgarian Sub_Regions [Trakia_East. Haskovo]