Bonn part of North Rhine-Westphalia
Geography
Topography
Situated in the southernmost part of the Rhine-Ruhr region, Germany's largest metropolitan area with over 11 million inhabitants, Bonn lies within the German state of North Rhine-Westphalia, on the border with Rhineland-Palatinate. Spanning an area of more 141.2 km2 (55 sq mi) on both sides of the river Rhine, almost three-quarters of the city lies on the river's left bank.
To the south and to the west, Bonn borders the Eifel region which encompasses the Rhineland Nature Park. To the north, Bonn borders the Cologne Lowland. Natural borders are constituted by the river Sieg to the north-east and by the Siebengebirge (also known as the Seven Hills) to the east. The largest extension of the city in north–south dimensions is 15 km (9 mi) and 12.5 km (8 mi) in west–east dimensions. The city borders have a total length of 61 km (38 mi). The geographical centre of Bonn is the Bundeskanzlerplatz (Chancellor Square) in Bonn-Gronau.
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