|Native name||Alèir (Occitan)|
|• location||Massif Central|
|• elevation||1,503 m (4,931 ft)|
|Length||421 km (262 mi)|
|Basin size||14,350 km2 (5,540 sq mi)|
|• average||140 m3/s (4,900 cu ft/s)|
|Progression||Loire-> Atlantic Ocean|
The Allier ( AL-ee-ay, a(h)l-YAY, French: [alje] ; Occitan: Alèir) is a river in central France. It is a left tributary of the Loire. Its source is in the Massif Central, in the Lozère department, east of Mende. It flows generally north. It joins the Loire west of the city of Nevers. It is 421 km (262 mi) long, and has a drainage basin of 14,350 km2 (5,540 sq mi).
The Allier flows through the following departments, and along the following towns:
The main tributaries of the Allier are:
Grayling like to live in shoals and are sensitive to pollution. In the Allier these fish are more abundant in the stretch between Langogne and Brioude. They are economically important, being appreciated for food and fished for sport.