The Eem (; formerly the Amer) is a

river A river is a natural flowing watercourse, usually freshwater, flowing towards an ocean, sea, lake or another river. In some cases, a river flows into the ground and becomes dry at the end of its course without reaching another body of ...

in the central

Netherlands ) , anthem = ( en, "William of Nassau") , image_map = , map_caption = , subdivision_type = Sovereign state , subdivision_name = Kingdom of the Netherlands , established_title = Before independence , established_date = Spanish Netherl ...

with a length of approximately . The river is fed by the Vallei Canal and a number of

Veluwe The Veluwe () is a forest-rich ridge of hills (1100 km2) in the province of Gelderland in the Netherlands. The Veluwe features many different landscapes, including woodland, heath, some small lakes and Europe's largest sand drifts. The Ve ...

creeks, the most important of which are the Heiligenberger Beek, the Barneveldse Beek and the Lunterse Beek, all of which come together in

Amersfoort Amersfoort () is a city and municipality in the province of Utrecht, Netherlands, about 20 km from the city of Utrecht and 40 km south east of Amsterdam. As of 1 December 2021, the municipality had a population of 158,531, making it the second- ...

. The river then runs through the Eem Valley to the east of Soest,

Baarn Baarn () is a municipality and a town in the Netherlands, near Hilversum in the province of Utrecht. The municipality of Baarn The municipality of Baarn consists of the following towns: Baarn, Eembrugge, Lage Vuursche. The town of Baarn ...

and Eemnes before emptying into the Eemmeer. The Eem is responsible for the largest portion of the drainage of the Gelder Valley. The

polder A polder () is a low-lying tract of land that forms an artificial hydrological entity, enclosed by embankments known as dikes. The three types of polder are: # Land reclaimed from a body of water, such as a lake or the seabed # Flood plains ...

s of the Eem are valuable scenic landscapes. Because of land

subsidence Subsidence is a general term for downward vertical movement of the Earth's surface, which can be caused by both natural processes and human activities. Subsidence involves little or no horizontal movement, which distinguishes it from slope mov ...

as a result of

drainage Drainage is the natural or artificial removal of a surface's water and sub-surface water from an area with excess of water. The internal drainage of most agricultural soils is good enough to prevent severe waterlogging (anaerobic condition ...

, the primate lies higher than the surrounding land. When water levels drop in the summer, water is pumped from the

Nederrijn 300px, Course of the Nederrijn Nederrijn (; "Lower Rhine"; not to be confused with the section called Lower Rhine further upstream) is the name of the Dutch part of the Rhine from the confluence at the town of Angeren of the cut-off Rhine be ...

to the Eem through the Vallei Canal. Because of

agricultural pollution Agricultural pollution refers to biotic and abiotic byproducts of farming practices that result in contamination or degradation of the environment and surrounding ecosystems, and/or cause injury to humans and their economic interests. The pol ...

carried by the Eem towards the Eemmeer, the biological richness of this lake is less than that of the other lakes which surround

Flevoland Flevoland () is the twelfth and youngest province of the Netherlands, established in 1986, when the southern and eastern Flevopolders, together with the Noordoostpolder, were merged into one provincial entity. It is in the centre of the countr ...

. The Eem gives its name to the

Eemian The Eemian (also called the last interglacial, Sangamonian Stage, Ipswichian, Mikulin, Kaydaky, penultimate,NOAA - Penultimate Interglacial Period http://www.ncdc.noaa.gov/global-warming/penultimate-interglacial-period Valdivia or Riss-Würm) wa ...

interglacial An interglacial period (or alternatively interglacial, interglaciation) is a geological interval of warmer global average temperature lasting thousands of years that separates consecutive glacial periods within an ice age. The current Holocene i ...

era.

Gallery

Image:Koppelpoort Amersfoort 2008.jpg, The Eem at the Koppelpoort Image:Amersfoort-c-the river.jpg, The Eem in Amersfoort Image:MondingEem.JPG, Mouth of the Eem

External links

The Eem in Pictures
Rivers of Utrecht (province) Rivers of the Netherlands {{Netherlands-river-stub