Topographic map of Dobruja
Own work.
Sources :

Topographic background : NASA Shuttle Radar Topography Mission (public domain). SRTM3 v.2 for altitude levels, SWBD for the lakes shores.
Vector data:
derived from Geo-Spatial.org: DOBROGEA dataset by Ştefan Constantinescu, released under CC-BY-SA 3.0.
created from Landsat ETM+ imagery (14.25 m resolution – public domain)
Location map : derived from Image:Blank map of Europe - Atelier graphique colors.svg by Historicair, released under GFDL &amp; CC-BY-SA.
Scale, Palette and Symbols: derived from Image:Maps_template-en.svg by Sting, released under GFDL &amp; CC-BY-SA 2.5.
Anonimu