North Rhine-Westphalia is a state of Germany. It is the most-populous of the 16 states of Germany.
Siegburg 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 of West German government Bonn and 26 kilometres from Cologne. The population of the city was 39,192 in the 2013 census.
Blomberg is a town in the Lippe district of North Rhine-Westphalia, Germany, with c. 15,200 inhabitants (2018).
Ahr is a river in Germany, a left tributary of the Rhine. Its source is at an elevation of approximately 470 metres (1,540 ft) above sea level in Blankenheim in the Eifel, in the cellar of a timber-frame house near the castle of Blankenheim. After 18 kilometres (11 mi) it crosses from North Rhine-Westphalia into Rhineland-Palatinate.
The Volme is a river in North Rhine-Westphalia, Germany, and is a tributary of the river Ruhr. It is 50.5 km long, of which about 21 km lie within the city limits of Hagen. Its largest tributary is the Ennepe.
The Hönne is a left tributary river to the Ruhr, flowing through the northern Sauerland hills in North Rhine-Westphalia, Germany. The spring of the Hönne is located in the west of Neuenrade at 437m above sea level. After 33 km the river ends near the town of Fröndenberg. The total catchment area of the river is 262 km².
The Egge Hills, or just the Egge is a range of forested hills, up to 464 m above sea level (NN), in the east of the German state of North Rhine-Westphalia.
The Arnsberg Forest Nature Park is a nature park in the districts of Hochsauerlandkreis and Soest within the administrictive region of Arnsberg in the German state of North Rhine-Westphalia. The park was established in 1960 and covers an area of 482 km². Nearly 350 km² of the protection is forested and the park's wooded hills rise up to 581.5 m above sea level (NN).
The Klosterbach is a right-hand tributary of the Große Aue, which is known as the Neuer Mühlenbach at the point where they join, in north Germany. The Klosterbach lies entirely within the parish of Rödinghausen in the district of Herford, North Rhine-Westphalia.
The Stemweder Berg is a ridge 181.4 metres (595 ft) above sea level on the border of North Rhine-Westphalia and Lower Saxony in Germany. It is the northernmost and smallest of Germany's Central Uplands ranges.
Emmer is a river of Lower Saxony and North Rhine-Westphalia, Germany. It flows into the Weser in Emmerthal.
The Armuthsbach is an 18.4-kilometre-long, orographically left-hand tributary of the Ahr in the German states of North Rhine-Westphalia and Rhineland-Palatinate.
Else is a 12.9 km river in Märkischer Kreis, North Rhine-Westphalia, Germany. It is a left tributary of the Lenne. The Else rises about 800m north of Herscheid to an altitude of 414m above sea level. As it flows to the east, the stream reaches the area of the Plettenberg-Hüinghausen airfield and passes the village of Hüinghausen on its southern edge. It then proceeds through Plettenberg, before joining up with the Lenne. There is a height difference of 214m between the source and the mouth, which corresponds to a mean gradient of 16.6%.
Harlebach is a river of North Rhine-Westphalia, Germany. It is a 7.6 km long tributary of the river Alme in North Rhine-Westphalia, Germany. The Harlebach rises 430m above sea level in the Arnsberg forest, above Brilon. It joins the Alme through forested areas including the Almetal nature reserve. It acts as the boundary between Paderborn and Hochsauerlandkreis.
Kleine Aa is a river of North Rhine-Westphalia, Germany, a tributary of the Aabach. Thus it is part of the Rhine River Basin.
Niese is a river of North Rhine-Westphalia, Germany. It is a right tributary of the Emmer in Schieder-Schwalenberg.
Strombach is a river of North Rhine-Westphalia, Germany. It is a right tributary of the Agger.
The Weiß is a river of North Rhine-Westphalia, Germany, which is 18.1 kilometers (11.2 mi) in length. Its source is near the mountain Kalteiche, at a height of 493 meters (1,617 ft) above sea level. Then it flows through the villages Wilgersdorf, Rudersdorf, Anzhausen, Niederdielfen, Kaan-Marienborn, and the city Siegen. The Weiß flows into the Sieg in Siegen, at 247 meters elevation.
The Wiehl is a 33.6-kilometre-long, orographically left tributary of the River Agger in the German state of North Rhine-Westphalia. It is the longest river situated entirely within the county of Oberbergischer Kreis and the third longest tributary of the Agger.
The Aubach is an orographically left tributary of the River Wiehl in the German state of North Rhine-Westphalia.
