Progress report:
Danube river - all the way across the map, done
Bratislava - downtown almost done, now closing in for the Castle hill.
You can see it on the attached image - red line marks level of Lev. 1 hill, orange line is Level 2 and bright blue is Level 3. Moving from Panonia lowlands to Carpathia
For this map, one height level = 10 meters.
EDIT: Err, forgot to attach the image
