Geography
The Oberbergischer Kreis covers the hills west of the Sauerland and north of the Westerwald. It constitutes the eastern part of the Bergisches Land nature reserve. Situated at an altitude of 100–520 meters above sea level, it is rich in wood and water (numbering ten artificial lakes) and thus a recreational area for citizens from Cologne, the Ruhr area and the Netherlands.
The prevailing rock is greywacke, which was and in places still is mined in large stone quarries.
Read more about this topic: Oberbergischer Kreis
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