The Sieg is a

river A river is a natural flowing watercourse, usually freshwater Fresh water or freshwater is any naturally occurring liquid or frozen water containing low concentrations of dissolved salts and other total dissolved solids. Although the ...

North Rhine-Westphalia North Rhine-Westphalia (german: Nordrhein-Westfalen, ; li, Noordrien-Wesfale ; nds, Noordrhien-Westfalen; ksh, Noodrhing-Wäßßfaale), commonly shortened to NRW (), is a state (''Land'') in Western Germany. With more than 18 million inhab ...

and

Rhineland-Palatinate Rhineland-Palatinate ( , ; german: link=no, Rheinland-Pfalz ; lb, Rheinland-Pfalz ; pfl, Rhoilond-Palz) is a western state of Germany. It covers and has about 4.05 million residents. It is the ninth largest and sixth most populous of the ...

Germany Germany, officially the Federal Republic of Germany (FRG),, is a country in Central Europe. It is the most populous member state of the European Union. Germany lies between the Baltic and North Sea to the north and the Alps to the sou ...

. It is a

right tributary A tributary, or affluent, is a stream or river that flows into a larger stream or main stem (or parent) river or a lake. A tributary does not flow directly into a sea or ocean. Tributaries and the main stem river drain the surrounding drainag ...

of the

Rhine The Rhine ; french: Rhin ; nl, Rijn ; wa, Rén ; li, Rien; rm, label=Sursilvan, Rein, rm, label=Sutsilvan and Surmiran, Ragn, rm, label=Rumantsch Grischun, Vallader and Puter, Rain; it, Reno ; gsw, Rhi(n), including in Alsatian dialect, Al ...

. The river is named after the

Sicambri The Sicambri, also known as the Sugambri or Sicambrians, were a Germanic people who during Roman times lived on the east bank of the river Rhine, in what is now Germany, near the border with the Netherlands. They were first reported by Julius Ca ...

. It is in length. The source is located in the

Rothaargebirge The Rothaar Mountains (german: Rothaargebirge, , also ''Rotlagergebirge''), or Rothaar, is a low mountain range reaching heights of up to 843.1 m in North Rhine-Westphalia and Hesse, Germany. It is believed that its name must once have been ...

mountains. From here the river runs southwestwards to the city of

Siegen Siegen () is a city in Germany, in the south Westphalian part of North Rhine-Westphalia. It is located in the district of Siegen-Wittgenstein in the Arnsberg region. The university town (nearly 20,000 students in the 2018–2019 winter semeste ...

and the hills of

Siegerland The Siegerland is a region of Germany covering the old district of Siegen (now part of the district of Siegen-Wittgenstein in North Rhine-Westphalia) and the upper part of the district of Altenkirchen, belonging to the Rhineland-Palatinate adjoin ...

, both named after the river. Further west the Sieg valley forms the boundary of the

Bergisches Land The Bergisches Land (, '' Berg Country'') is a low mountain range region within the state of North Rhine-Westphalia, Germany, east of Rhine river, south of the Ruhr. The landscape is shaped by woods, meadows, rivers and creeks and contains ov ...

(northern) and

Westerwald The Westerwald (; literally 'Western forest') is a low mountain range on the right bank of the river Rhine in the German federal states of Rhineland-Palatinate, Hesse and North Rhine-Westphalia. It is a part of the Rhenish Massif ( or Rhenish ...

(southern). The river finally runs through a protected area east of the city of

Bonn The federal city of Bonn ( lat, Bonna) is a city on the banks of the Rhine in the German state of North Rhine-Westphalia, with a population of over 300,000. About south-southeast of Cologne, Bonn is in the southernmost part of the Rhine-Ru ...

. After passing the cities of

Hennef Hennef (Sieg) () is a town in the Rhein-Sieg district of North Rhine-Westphalia, Germany. It is situated on the river Sieg, approx. south-east of Siegburg and east of Bonn. Hennef is the fourth-biggest town in the Rhein-Sieg-Kreis (i.e. distri ...

and

Siegburg Siegburg (i.e. ''fort on the Sieg river''; Ripuarian: ''Sieburch'') is a city in the district of Rhein-Sieg-Kreis in North Rhine-Westphalia, Germany. It is located on the banks of the rivers Sieg and Agger, 10 kilometres from the former seat ...

, the river flows into the Rhine at the ''Naturschutzgebiet Siegaue'', a protected area immediately to the northeast of the city of Bonn, near

Niederkassel Niederkassel ( Ripuarian: ''Neddekaaßel'') is a town in the Rhein-Sieg district, in North Rhine-Westphalia, Germany, with a population of around 37,000 people. It is situated on the right bank of the Rhine, approx. north-east of Bonn and sout ...

Sieg Spring

The Sieg Spring (german: Siegquelle), the source of the Sieg, is at an elevation of , near the village of , North Rhine-Westphalia. The location was restored in 2013.

Tributaries

The main tributaries of the Sieg are, from source to mouth: * Ferndorfbach (right) *

Weiß Weiss or Weiß may refer to: People * Weiss (surname), including spelling Weiß * Weiss Ferdl (1883-1949), German actor Places * Mount Weiss, Jasper National Park, Alberta, Canada * Weiss Lake, Alabama * Weiß (Sieg), a river in North Rhine-West ...

(left) *

Asdorf Asdorf (also: Asdorfer Bach, in its upper course: Weibe) is a river of North Rhine-Westphalia and Rhineland-Palatinate, Germany. It flows into the Sieg in Kirchen. See also *List of rivers of North Rhine-Westphalia *List of rivers of Rhineland- ...

(right) * Heller (left) * Wisser Bach (right) * Nister (left) *

Bröl The Bröl (also called the Brölbach or the Homburgische Bröl) is a 45.1 km long right tributary of the Sieg in North Rhine-Westphalia, Germany. The river flows through the districts of Rhein-Sieg-Kreis and Oberbergischer Kreis. The ...

(right) * Wahnbach (right) *

Pleisbach Pleisbach (in its upper course also: ''Logebach'') is a river of North Rhine-Westphalia, Germany. It is a left tributary of river Sieg near Siegburg. See also *List of rivers of North Rhine-Westphalia A list of rivers of North Rhine-Westphalia ...

(left) * Agger (right)

References

Rivers of North Rhine-Westphalia Rivers of Rhineland-Palatinate Rivers of Siegerland Rivers of the Westerwald Rivers of Germany {{RhinelandPalatinate-river-stub