Loir

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Coordinates: 47°33′28″N 0°31′35″W / 47.55778°N 0.52639°W / 47.55778; -0.52639
Loir
Le Loir
River
France Loir-et-Cher Lavardin pont 01.JPG
The Loir in Lavardin
Country France
Regions Centre-Val de Loire, Pays de la Loire
Departments Eure-et-Loir, Loir-et-Cher, Maine-et-Loire, Sarthe
Tributaries
 - right Braye
Cities Châteaudun, Vendôme, La Flèche
Source Perche
 - location Champrond-en-Gâtine, Eure-et-Loir, France
 - elevation 265 m (869 ft)
 - coordinates 48°22′41″N 1°3′8″E / 48.37806°N 1.05222°E / 48.37806; 1.05222
Confluence Sarthe
 - location Briollay, Maine-et-Loire, France
 - elevation 16 m (52 ft)
 - coordinates 47°33′28″N 0°31′35″W / 47.55778°N 0.52639°W / 47.55778; -0.52639
Length 317.4 km (197 mi)
Basin 8,294 km² (3,202 sq mi)
Discharge for Durtal
 - average 31.70 /s (1,119 cu ft/s)
Wikimedia Commons: Loir

The Loir is a river in central France. It is a left tributary of the Sarthe. It flows through two regions of France: Centre-Val de Loire and Pays de la Loire

The Eure-et-Loir and Loir-et-Cher departments are named after this river.

Geography[change | change source]

The Loir is 317.4 kilometres (197.2 miles) long. Its drainage basin covers 8,294 square kilometres (3,202 square miles).[1]

Its average yearly discharge (volume of water which passes through a section of the river per unit of time) is 31.70 m3/s (1,119 cu ft/s) at Durtal, Maine-et-Loire (1961 - 2017).[2]

Average monthly discharge (m3/s) at Durtal

Course[change | change source]

The Loir starts in the former province of Perche, in the commune of Champrond-en-Gâtine, Eure-et-Loir department, Centre-Val de Loire region. It starts at an altitude of about 265 metres (869 feet).[3]

The Loir flows, in general, to the southwest. It goes through the following regions, departments and communes:[1]

At its end, the Loir flows into the Sarthe river at the place called Bec du Loir ("beak of the Cher")[N 1] in Briollay, Maine-et-Loire department, at 16 metres (52 feet) of altitude.[4]

Main tributaries[change | change source]

The main tributaries of the Loir are:

Left tributaries:

  • Conie - 32.4 km
  • Aigre - 30.8 km
  • Houzée - 20.8 km
  • Dême - 32.5 km
  • Fare - 36.9 km
  • Maulne - 29.3 km
  • Marconne - 20.9 km

Right tributaries:

  • Thironne - 26 km
  • Foussarde - 30.5 km
  • Ozanne - 44 km
  • Yerre - 48.7 km
  • Egvonne - 24.2 km
  • Braye - 75.1 km
  • Veuve - 26.2 km
  • Aune - 29.8 km
  • Argance - 19.7 km

Gallery[change | change source]

Related pages[change | change source]

Notes[change | change source]

  1. The French word bec (beak or bill in English) means, in this and similar cases, the confluence of two rivers.

References[change | change source]