Freibach reservoir at southern Austrian Alps country on overcast day, Aerial flyover rising shot

freibach reservoir homelisko jezero carinthia artificial lake panoramic earthfill dam reservoir lake karavanke hydropower southern carinthia freibach panorama waterpower dam aerial river landscape drau hydro energy environment water flyover boats nature mountains austria horizon hill europe trees park alps travel green earthfill forward peak vacation outdoors stone rising blue reveal shot rock summer alpine shrubs dark