Rhein-Sieg-Kreis

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, from the former seat of West German government Bonn and from Cologne. The population of the city was 39,192 in the 2013 census.

town in the Rhein-Sieg district of North Rhine-Westphalia, Germany

The Rhein-Sieg-Kreis () is a Kreis (district) in the south of North Rhine-Westphalia, Germany. Neighboring districts are Rheinisch-Bergischer Kreis, Oberbergischer Kreis, Altenkirchen, Neuwied, Ahrweiler, Euskirchen, Rhein-Erft-Kreis, the urban district of Cologne. The federal city of Bonn is nearly completely surrounded by the district.

Alfter (; ) is a municipality in the Rhein-Sieg district, in North Rhine-Westphalia, Germany. It is situated approximately 6 km west of Bonn.

Ruppichteroth is a municipality in the Rhein-Sieg district, in the southern part of North Rhine-Westphalia, Germany. It is located approximately 30 kilometers east of Bonn.

thumb|The basalt quarry of Blauer Stein near Kuchhausen

thumb|The Kottenforst in spring

highest mountain in the Siebengebirge mountain range, Germany