Rhine-Ruhr-Sieg
Aachen - Cologne - Duesseldorf - Dortmund - siegenThe Region Rhine-Ruhr-Sieg is the largest urban agglomeration within Germany and includes the metropolitan area Rhine-Ruhr. The former industry was based on mining and the coal and steel industry. Nowadays many different branches, that sometimes developed closely related to the former industry, established in this region. Those reach from specific sectors of metal processing (Solingen, Siegen), micro- and medical technology (Dortmund), chemical industry (Leverkusen) up to ICT and entertainment industry. The significant high density of research institutes (e.g. Aachen, Dortmund, Bonn) led to an agglomeration of High-tech enterprises.
Inhabitants: 13, 6 Mio.
Area: 19,347 sq km
Population density: 702 /sq km


