Gabas (river)

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Country France
Basin features
Main source Plateau of Ger
River mouth Adour
43°45′41″N 0°42′9″W / 43.76139°N 0.70250°W / 43.76139; -0.70250 (Adour-Louts)Coordinates: 43°45′41″N 0°42′9″W / 43.76139°N 0.70250°W / 43.76139; -0.70250 (Adour-Louts)
Progression AdourAtlantic Ocean
Physical characteristics
Length 117 km (73 mi)

The Gabas, is a left tributary of the Adour, in the Landes, in the Southwest of France.


The name Gabas is derived from the French 'gave'[1] (Gascon: 'gabe'), which in the Pyrenees generically describes a small or large watercourse. The river was known as the fluvius gavasensis in 982.[2]

A tributary of the Léez is named the Gabassot, an hypocoristic of Gabas.


The Gabas rises in the plateau of Ger in the north of Lourdes, as the union of the Gabastou and the Honrède. It flows north-west like the neighboring rivers: the Luy, the Uzan and the Ousse.

The Gabas crosses the Tursan, in the Landes. It flows into the Adour in Toulouzette, downstream from Saint-Sever.

A dam of 20 million cubic metres (16,000 acre·ft) was built in its upper course to regulate the lowest water level.

Main tributaries[edit]


  1. ^ fr:Gave
  2. ^ cartulary of Saint-Sever.