The Geul (, ; german: Göhl ; french: la Gueule) is a river in
Belgium and in the
Netherlands, where it is a right-bank tributary to the river
Meuse.
Geography
The source of the Geul is at about above sea level in northeastern Belgium near the German border, south of the German town of
Aachen
Aachen ( ; ; Aachen dialect: ''Oche'' ; French and traditional English: Aix-la-Chapelle; or ''Aquisgranum''; nl, Aken ; Polish: Akwizgran) is, with around 249,000 inhabitants, the 13th-largest city in North Rhine-Westphalia, and the 28th- ...
. From there, after flowing some in a northwestern direction, it leaves Belgium and enters the Netherlands at Cotessen in the
Vaals municipality. After a further in a west-northwestern direction through the most southern part of
Limburg, which in its turn is the most southern province of the Netherlands, it flows into the Meuse, north of the city of
Maastricht.
A tributary of the Geul is the
Gulp.
Places through which the Geul passes are among others
Kelmis (Belgium),
Valkenburg aan de Geul and
Meerssen (Netherlands).
Pollution
The water of the Geul is polluted seriously with heavy metals
zinc and
lead and as a result also is a serious source of heavy metal inflow into the Meuse.
This pollution is a result of former zinc and lead mining activities near the Belgian towns of
Kelmis (La Calamine) and
Plombières (formerly named Bleiberg).
The last one of these mines have closed early in the 20th century. One of the reasons for giving up mining activities in Plombières was the occasional flooding of the mine by the Geul, as the bedrock (mainly
Carboniferous
The Carboniferous ( ) is a geologic period and system of the Paleozoic that spans 60 million years from the end of the Devonian Period million years ago ( Mya), to the beginning of the Permian Period, million years ago. The name ''Carbonifero ...
limestone) contains many
faults and fissures.
Although mine factory buildings have been demolished, old railway dikes still are abundantly present in the area. They provide ideal hiking routes, that are known for the presence of so-called "zinc flora" (zinc-tolerant plants, such as
yellow calamine violet
Yellow is the color between green and orange on the spectrum of light. It is evoked by light with a dominant wavelength of roughly 575585 nm. It is a primary color in subtractive color systems, used in painting or color printing. In the RG ...
and ''
Viola calaminaria'').
Significant events
During the
2021 European floods
In July 2021, several European countries were affected by severe floods. Some were catastrophic, causing deaths and widespread damage. The floods started in the United Kingdom as flash floods causing some property damage and inconvenience. L ...
, the banks of the river flooded, including in some of the major population centers such as
Valkenburg aan de Geul.
De beelden van de wateroverlast in Zuid-Limburg
/ref>
Gallery
File:Kelmis Tueljebach - Geul.jpg, At Kelmis Tueljebach
File:Schin op Geul-Geul-Schoonbron-1.JPG, At Schin op Geul
File:Geul bij Strabeek Limburg.jpg, At Strabeek
File:Geul voulwammes.jpg, Estuary at Voulwammes
References
{{Authority control
International rivers of Europe
Rivers of the Ardennes (Belgium)
Rivers of Belgium
Rivers of the Netherlands
Rivers of Liège Province
Rivers of South Limburg (Netherlands)
Gulpen-Wittem
Kelmis
Meerssen
Plombières
Raeren
Valkenburg aan de Geul