The

river A river is a natural flowing watercourse, usually freshwater Fresh water or freshwater is any naturally occurring liquid or frozen water containing low concentrations of dissolved salts and other total dissolved solids. Although the ...

Ternoise (; nl, Ternaas) is one of the small chalk streams that flow from the plateau of the southern Boulonnais and

Picardy Picardy (; Picard and french: Picardie, , ) is a historical territory and a former administrative region of France. Since 1 January 2016, it has been part of the new region of Hauts-de-France. It is located in the northern part of France. Hist ...

, via the

Canche The river Canche (; nl, Kwinte) is one of the rivers that flow from the plateau of southern Boulonnais and Picardy, into the English Channel, of which the Somme is the largest example. It is long. The basin of the Canche extends to and lies ...

, 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 Kan ...

. The basin of the Ternoise extends to and lies in the southern end of the ''

département In the administrative divisions of France, the department (french: département, ) is one of the three levels of government under the national level ("territorial collectivities"), between the administrative regions and the communes. Ninety- ...

'' of

Pas-de-Calais Pas-de-Calais (, " strait of Calais"; pcd, Pas-Calés; also nl, Nauw van Kales) is a department in northern France named after the French designation of the Strait of Dover, which it borders. It has the most communes of all the departments ...

. It is one of the rivers of the Seven Valleys tourist area and gives its name to the Ternois area.

Geography

The long river rises at

Ligny-Saint-Flochel Ligny-Saint-Flochel () is a commune in the Pas-de-Calais department in the Hauts-de-France region of France. Geography Ligny-Saint-Flochel is situated west of Arras, at the junction of the D81 and the D83 roads. Population Places of inte ...

and passes through

Saint-Pol-sur-Ternoise Saint-Pol-sur-Ternoise (, literally ''Saint-Pol on Ternoise''; vls, Sint-Pols-aan-de-Ternas) is a commune in the Pas-de-Calais department in northern France. It is the seat of the canton of Saint-Pol-sur-Ternoise. The population of the town i ...

to join the river

Huby-Saint-Leu Huby-Saint-Leu () is a commune in the Pas-de-Calais department in the Hauts-de-France region of France. Geography Huby-Saint-Leu lies to the north of Hesdin, and is not much more than a suburb of that town. The D928 road to Saint-Omer Saint ...

, near to the town of

Hesdin Hesdin (; vls, Heusdin) is a commune in the Pas-de-Calais department in northern France. Geography The N39, from Arras to Montreuil, used to be the main thoroughfare of the town. In the 1950s, a circular route was created to help traffic fl ...

Towns and villages along the course

The Ternoise flows through the following places (all within the

department): *

Roëllecourt Roëllecourt is a commune in the Pas-de-Calais department in the Hauts-de-France region of France. Geography Roëllecourt lies east of Saint-Pol-sur-Ternoise, some west of Arras, at the junction of the D8 and N39 roads. Population Places o ...

Saint-Michel-sur-Ternoise Saint-Michel-sur-Ternoise (, literally ''Saint-Michel on Ternoise'') is a commune in the Pas-de-Calais department in the Hauts-de-France region of France. Geography Saint-Michel-sur-Ternoise is an eastern suburb of Saint-Pol-sur-Ternoise, on t ...

Gauchin-Verloingt Gauchin-Verloingt () is a commune in the Pas-de-Calais department in the Hauts-de-France region of France. Geography A farming village situated in the valley of the Ternoise river, northwest of Arras, at the junction of the D343 and the D100 ...

Hernicourt Hernicourt is a commune in the Pas-de-Calais department in the Hauts-de-France region of France. Geography A commune made up of three farming villages (Sautricourt, St.Martin and Hernicourt) that surround the neighbouring commune of Wavrans-sur ...

Wavrans-sur-Ternoise Wavrans-sur-Ternoise is a commune in the Pas-de-Calais department in the Hauts-de-France region of France. Geography Wavrans-sur-Ternoise is situated some northwest of Arras, at the junction of the D343 and the D99 roads, on the banks of the r ...

Monchy-Cayeux Monchy-Cayeux is a commune in the Pas-de-Calais department in the Hauts-de-France region of France. Geography Monchy-Cayeux is situated northwest of Arras, in the Ternoise river valley and on the D343 road. Population Places of interest * T ...

Anvin Anvin () is a commune in the Pas-de-Calais department in northern France. Geography Anvin is a farming village located in the Ternoise river valley, 28 miles (44 km) northwest of Arras, at the junction of the D343, D70 and D94 roads. Po ...

Teneur Teneur () is a commune in the Pas-de-Calais department in the Hauts-de-France region of France. Geography Teneur lies northwest of Arras, at the junction of the D97 and D94 roads, by the banks of the river Ternoise. Population Places of in ...

Érin Érin () is a commune in the Pas-de-Calais department in the Hauts-de-France region in France. Situation Érin is a small village on the south side of the small river, the Ternoise which flows through St.Pol-sur-Ternoise and joins the River Ca ...

Tilly-Capelle Tilly-Capelle is a commune in the Pas-de-Calais department in the Hauts-de-France region of France. Geography Tilly-Capelle lies in the Ternoise valley, northwest of Arras, near the junction of the D94 and D97 roads. Population Places of i ...

Blangy-sur-Ternoise Blangy-sur-Ternoise (, literally ''Blangy on Ternoise'') is a commune in the Pas-de-Calais department in the Hauts-de-France region in northern France. Geography Situated some 9 miles(15 km) northwest of Saint-Pol-sur-Ternoise, on the D94 ...

, Blingel,

Rollancourt Rollancourt () is a commune in the Pas-de-Calais department in the Hauts-de-France region of France. Geography Rollancourt is located 18 miles (28 km) southeast of Montreuil-sur-Mer on the D107 road, in the valley of the Ternoise The ri ...

, Auchy-lès-Hesdin,

Le Parcq Le Parcq () is a commune in the Pas-de-Calais department in the Hauts-de-France region of France. Geography Le Parcq lies about 18 miles (29 km) southeast of Montreuil-sur-Mer, on the N39 road, in the valley of the Ternoise river. Admini ...

, Grigny and

Tributaries

The Faux and the Eps are the only principal watercourses joining the Ternoise.

Hydrological Information

The Ternoise is a very uniform river. Seasonal flow fluctuations are not very marked, similar to the Canche or the Somme, its neighbours. The higher water flows occur at the end of winter and in the spring. Average flows vary between 3.44 m³ per second in September to 5.36 m³ per second in March.

Gallery

Image:Ternoise-hernicourt.JPG, The Ternoise at

Image:auchy.jpg, The Ternoise at Auchy-lès-Hesdin Image:TernoiseAnvinA.JPG, The Ternoise at

Image:TernoiseAnvinB.JPG, At Anvin, further upstream

References

External links

*''Carte Géologique de la France à l'échelle du millionième'' 6th edn. BRGM (2003)
Banque Hydro - Station E5406510 - La Ternoise à Hesdin (option Synthèse)

Carte des bassins versants de la Canche et de la Ternoise Informations sur les atlas des zones inondables
{{Authority control Rivers of France Rivers of the Pas-de-Calais Rivers of Hauts-de-France