The Ieperlee (or ''Ypres-Ijzer Canal'') is a

canalized River engineering is a discipline of civil engineering which studies human intervention in the course, characteristics, or flow of a river with the intention of producing some defined benefit. People have intervened in the natural course and b ...

river that rises in

Heuvelland Heuvelland () is a municipality located in the Belgian province of West Flanders. The municipality comprises the villages of Dranouter, Kemmel, De Klijte, Loker, Nieuwkerke, Westouter, Wijtschate and Wulvergem. Heuvelland is a thinly populated rur ...

in the

Belgian Belgian may refer to: * Something of, or related to, Belgium * Belgians, people from Belgium or of Belgian descent * Languages of Belgium, languages spoken in Belgium, such as Dutch, French, and German *Ancient Belgian language, an extinct languag ...

province of

West Flanders ) , settlement_type = Province of Belgium , image_flag = Flag of West Flanders.svg , flag_size = , image_shield = Wapen van West-Vlaanderen.svg , shield_size = , image_map ...

and flows via the city of

Ypres Ypres ( , ; nl, Ieper ; vls, Yper; german: Ypern ) is a Belgian city and municipality in the province of West Flanders. Though the Dutch name is the official one, the city's French name is most commonly used in English. The municipality co ...

(Ieper) into the

Yser The Yser ( , ; nl, IJzer ) is a river that rises in French Flanders (the north of France), enters the Belgian province of West Flanders and flows through the '' Ganzepoot'' and into the North Sea at the town of Nieuwpoort. The source of the Ys ...

Fort Knokke Fort Knokke or Fort de Cnocke or Fort de la Knocque or Fort de Knocke was an important fortification that defended western Flanders from the 1580s until it was demolished in the 1780s. During its 200 year history, the place was held by the Spanish ...

. The river is long. Its name is derived from ''iep'', the

Dutch Dutch commonly refers to: * Something of, from, or related to the Netherlands * Dutch people () * Dutch language () Dutch may also refer to: Places * Dutch, West Virginia, a community in the United States * Pennsylvania Dutch Country People E ...

word for

elm Elms are deciduous and semi-deciduous trees comprising the flowering plant genus ''Ulmus'' in the plant family Ulmaceae. They are distributed over most of the Northern Hemisphere, inhabiting the temperate and tropical-montane regions of North ...

. It gave its name to the city of Ypres. In the 11th century the river was canalized to link the city, which had a thriving cloth industry, to the sea. Even in 1842, some 2,034 boats still passed the lock at

Boezinge Boezinge (; vls, Boezienge) is a village in the municipality of Ypres in the Belgian province of West Flanders. Boezinge can be reached via the N369 road in the direction of Diksmuide. It was an independent municipality until 1977. History Boezin ...

. Today, the canal is only used for recreational purposes. During the

First World War World War I (28 July 1914 11 November 1918), often abbreviated as WWI, was one of the deadliest global conflicts in history. Belligerents included much of Europe, the Russian Empire, the United States, and the Ottoman Empire, with fightin ...

, the river was part of the frontline. It linked the

Ypres Salient The Ypres Salient around Ypres in Belgium was the scene of several battles and an extremely important part of the Western front during the First World War. Ypres district Ypres lies at the junction of the Ypres–Comines Canal and the Ieperlee. ...

, held by the French and English, to the

Yser Front The Yser Front (french: Front de l'Yser, nl, Front aan de IJzer or ), sometimes termed the West Flemish Front in British writing, was a section of the Western Front during World War I held by Belgian troops from October 1914 until 1918. The front ...

, held by the Belgian Army (see ''

Dodengang The Dodengang (Dutch, also called Trench of Death in English and ''Le Boyau de la mort'' in French) is a World War I memorial site located near Diksmuide, Belgium. The site is located about from the IJzertoren in the centre of the city, and set ...

'').

Tributaries

* Bollaerbeek * Zillebeek Rivers of Belgium Rivers of West Flanders {{Belgium-river-stub