Puneet Varma


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Main source  Pas-de-Calais
Basin size  342 km (132 sq mi)
Discharge  4.45 m³/s
Mouth  Canche
River mouth  Canche
Length  41 km
Source  Pas-de-Calais
Country  France
Ternoise httpsuploadwikimediaorgwikipediacommonsthu
Progression  Canche→ English Channel
Similar  Leie, Côte d'Opale, Deûle, Clarence, Centre Historique Medieval

The river Ternoise (Dutch: Ternaas) is one of the small chalk streams that flow from the plateau of the southern Boulonnais and Picardy, via the Canche, into the English Channel. The basin of the Ternoise extends to 342 square kilometres (132 sq mi) and lies in the southern end of the département of Pas-de-Calais. It is one of the rivers of the Seven Valleys tourist area and gives its name to the Ternois area.


Map of La Ternoise, France


The 41.4-kilometre (25.7 mi) long river rises at Ligny-Saint-Flochel and passes through Saint-Pol-sur-Ternoise to join the river Canche at Huby-Saint-Leu, near to the town of Hesdin.

Towns and villages along the course

The Ternoise flows through the following places (all within the Pas-de-Calais department):

  • Ligny-Saint-Flochel, Roëllecourt, Saint-Michel-sur-Ternoise, Saint-Pol-sur-Ternoise, Gauchin-Verloingt, Hernicourt, Wavrans-sur-Ternoise, Monchy-Cayeux, Anvin, Teneur, Érin, Tilly-Capelle, Blangy-sur-Ternoise, Blingel, Rollancourt, Auchy-lès-Hesdin, Le Parcq, Grigny and Huby-Saint-Leu.
  • Tributaries

    The Faux and the Eps are the only principle 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.


    Ternoise Wikipedia

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