The Orne () 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 wate ...

Normandy Normandy (; french: link=no, Normandie ; nrf, Normaundie, Nouormandie ; from Old French , plural of ''Normant'', originally from the word for "northman" in several Scandinavian languages) is a geographical and cultural region in Northwestern ...

, within northwestern

France France (), officially the French Republic ( ), is a country primarily located in Western Europe. It also comprises of Overseas France, overseas regions and territories in the Americas and the Atlantic Ocean, Atlantic, Pacific Ocean, Pac ...

. It is long. It discharges into the

English Channel The English Channel, "The Sleeve"; nrf, la Maunche, "The Sleeve" (Cotentinais) or ( Jèrriais), (Guernésiais), "The Channel"; br, Mor Breizh, "Sea of Brittany"; cy, Môr Udd, "Lord's Sea"; kw, Mor Bretannek, "British Sea"; nl, Het Kana ...

at the port of

Ouistreham Ouistreham () is a commune in the Calvados department in Normandy region in northwestern France. Ouistreham is a small port with fishing boats, leisure craft and a ferry harbour. It serves as the port of the city of Caen. The town borders the ...

. Its source is in

Aunou-sur-Orne Aunou-sur-Orne (, literally ''Aunou on Orne'') is a commune in the Orne department in northwestern France. History In 1811 Aunou-sur-Orne absorbed the neighbouring commune of Saint-Cenery-près-Séez (sometimes spelled Saint-Cénery-près-Sées ...

, east of

Sées Sées () is a commune in the Orne department in north-western France. It lies on the river Orne from its source and north-by-northeast of Alençon. Sées station has rail connections to Argentan, Caen and Le Mans. Name The town's name derives ...

. Its main tributaries are the

Odon Odon may refer to: ;People * Odon Bacqué, American politician and non-fiction writer * Odon of Greater Poland, duke of Greater Poland * Odon de Pins, Grand Master of the Knights Hospitaller * Jorge Odón, Argentine mechanic and inventor ;Pla ...

and the

Rouvre The Rouvre is a river in Normandy, in the Orne département, a tributary of the river Orne. It is long. The river's source is in the commune of Beauvain, a few kilometres to the east of La Ferté-Macé. After crossing the Pays d'Houlme, it tu ...

. The Orne flows through the following departments and towns: *

Orne Orne (; nrf, Ôrne or ) is a département in the northwest of France, named after the river Orne. It had a population of 279,942 in 2019.Sées Sées () is a commune in the Orne department in north-western France. It lies on the river Orne from its source and north-by-northeast of Alençon. Sées station has rail connections to Argentan, Caen and Le Mans. Name The town's name derives ...

, Argentan *

Calvados Calvados (, , ) is a brandy from Normandy in France, made from apples or pears, or from apples with pears. History In France Apple orchards and brewers are mentioned as far back as the 8th century by Charlemagne. The first known record of Nor ...

Thury-Harcourt Thury-Harcourt () is a former commune in the Calvados department in the Normandy region in northwestern France. On 1 January 2016, it was merged into the new commune of Thury-Harcourt-le-Hom. The town is south of Caen, in the Orne valley. It i ...

Caen Caen (, ; nrf, Kaem) is a commune in northwestern France. It is the prefecture of the department of Calvados. The city proper has 105,512 inhabitants (), while its functional urban area has 470,000,Ouistreham Ouistreham () is a commune in the Calvados department in Normandy region in northwestern France. Ouistreham is a small port with fishing boats, leisure craft and a ferry harbour. It serves as the port of the city of Caen. The town borders the ...

Name

The name of the Orne in Normandy, which is referred to as the ''Olinas'' by

Ptolemy Claudius Ptolemy (; grc-gre, Πτολεμαῖος, ; la, Claudius Ptolemaeus; AD) was a mathematician, astronomer, astrologer, geographer, and music theorist, who wrote about a dozen scientific treatises, three of which were of importanc ...

, is a homonym of Fluvius Olne, the Orne saosnoise in Sarthe, which

Xavier Delamarre Xavier Delamarre (; born 5 June 1954) is a French linguist, lexicographer, and diplomat. He is regarded as one of the world's foremost authorities on the Gaulish language. Since 2019, he has been an associate researcher for the CNRS- PSL AOrOc ...

traces back to the Celtic olīnā (elbow).

Hydrology and water quality

The waters of the Orne are typically moderately turbid and brown in colour. pH levels of the Orne have been measured at 8.5Hogan, C Michael, ''Water quality of freshwater bodies in France'', Lumina Press, Aberdeen 2006 at the town of St. Andre sur Orne where summer water temperatures approximate 18 degrees

Celsius The degree Celsius is the unit of temperature on the Celsius scale (originally known as the centigrade scale outside Sweden), one of two temperature scales used in the International System of Units (SI), the other being the Kelvin scale. The ...

. Electrical conductivity of the Orne has been measured at 30 micro-Siemens per centimeter.

References

External link

* Rivers of Normandy Rivers of France Rivers of Calvados (department) Rivers of Orne 0Orne {{France-river-stub

Name

Hydrology and water quality

See also

References

External link