Aa (France)

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Aa
The Aa at Merck-Saint-Liévin
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Native name	L'Aa (French)
Location
Country	France
Physical characteristics
Source
• location	Bourthes, Pas-de-Calais
Mouth
• location	North Sea
• coordinates	51°0′21″N 2°6′16″E / 51.00583°N 2.10444°E / 51.00583; 2.10444
Length	93 km (58 mi)
Basin size	1,215 km2 (469 sq mi)
Discharge
• average	10 m3/s (350 cu ft/s)

The Aa (French pronunciation: [a]; Picard: Abbe) is a river in northern France that is 93 km (58 miles) long.^[1][2] Originating near the village of Bourthes and emptying into the North Sea near Gravelines, the Aa is located near the north-eastern limit of the English Channel. The Aa has been canalized for most of its length and forms much of the border between the regions of Pas-de-Calais and Nord.