The Prüm (ˈpʁʏm) is a river

River

A river is a natural watercourse, usually freshwater, flowing towards an ocean, a lake, a sea, or another river. In a few cases, a river simply flows into the ground or dries up completely before reaching another body of water. Small rivers may also be called by several other names, including...

 in Rhineland-Palatinate

Rhineland-Palatinate

Rhineland-Palatinate is one of the 16 states of the Federal Republic of Germany. It has an area of and about four million inhabitants. The capital is Mainz. English speakers also commonly refer to the state by its German name, Rheinland-Pfalz ....

, Germany

Germany

Germany , officially the Federal Republic of Germany , is a federal parliamentary republic in Europe. The country consists of 16 states while the capital and largest city is Berlin. Germany covers an area of 357,021 km2 and has a largely temperate seasonal climate...

, left tributary

Tributary

A tributary or affluent is a stream or river that flows into a main stem river or a lake. A tributary does not flow directly into a sea or ocean...

 of the Sauer

Sauer

The Sauer or Sûre is a river in Belgium, Luxembourg and Germany. A left tributary of the river Moselle, its total length is 173 km....

. Its total length is 85 km

Kilometre

The kilometre is a unit of length in the metric system, equal to one thousand metres and is therefore exactly equal to the distance travelled by light in free space in of a second...

. The Prüm rises in the Schneifel

Schneifel

The Schneifel is a range of low mountains in the western part of the Eifel in Germany, near the Belgian border. It runs from Brandscheid near Prüm in a northeasterly direction to Ormont....

 hills, north of the town of Prüm

Prüm

Prüm is a town in the Westeifel , Germany. Formerly a district capital, today it is the administrative seat of the Verbandsgemeinde Prüm.-Geography:...

, close to the border with Belgium

Belgium

Belgium , officially the Kingdom of Belgium, is a federal state in Western Europe. It is a founding member of the European Union and hosts the EU's headquarters, and those of several other major international organisations such as NATO.Belgium is also a member of, or affiliated to, many...

. It flows southward through Prüm

Prüm

Prüm is a town in the Westeifel , Germany. Formerly a district capital, today it is the administrative seat of the Verbandsgemeinde Prüm.-Geography:...

, Waxweiler

Waxweiler

Waxweiler is a municipality in the county of Bitburg-Prüm, in Rhineland-Palatinate, western Germany.Geographical Location:The town is located in the Eifel, south of Prüm and is accessible through the Autobahn #60...

, Holsthum

Holsthum

Holsthum is a municipality in the district of Bitburg-Prüm, in Rhineland-Palatinate, western Germany....

, and Irrel

Irrel

Irrel is a municipality in the district Bitburg-Prüm, in Rhineland-Palatinate, Germany. It is situated in the Eifel, near the border with Luxembourg, at the confluence of the rivers Prüm and Nims. It is located approx. 15 km south-west of Bitburg and 5 km north-east of Echternach.Irrel is...

. The Prüm discharges to the Sauer in Minden

Minden, Rhineland-Palatinate

Minden is a municipality in the district of Bitburg-Prüm, in Rhineland-Palatinate, western Germany....

, on the border with Luxembourg

Luxembourg

Luxembourg , officially the Grand Duchy of Luxembourg , is a landlocked country in western Europe, bordered by Belgium, France, and Germany. It has two principal regions: the Oesling in the North as part of the Ardennes massif, and the Gutland in the south...

, three kilometres east of Echternach

Echternach

Echternach is a commune with city status in the canton of Echternach, which is part of the district of Grevenmacher, in eastern Luxembourg. Echternach lies near the border with Germany, and is the oldest town in Luxembourg....

. The largest tributary of the Prüm is the Nims

Nims

The Nims is a river in Rhineland-Palatinate, Germany, left tributary of the Prüm. Its total length is 59 km. The Nims originates in the Eifel hills, east of the town Prüm. It flows south through Schönecken, Seffern, and through the western quarters of Bitburg. The Nims joins the Prüm in Irrel....

.