Ústí nad Labem , formerly known by its
German name
Aussig, is the 7th-most populous city of the
Czech Republic. It is the capital of its
its eponymous region and
district. Ústí is situated in a mountainous district at the confluence of the
Bílina and
Elbe rivers. It is a major industrial center and, besides being an active
river port, is an important railway junction.