# Larcis

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The **Arcis**[1] or **Larcis**[2] (with article agglutination; Occitan: *Arsís*) is a river in Southwestern [France](/source/France). It is a right tributary of the [Léez](/source/L%C3%A9ez), originating in the commune [Luc-Armau](/source/Luc-Armau) in the east of the [Pyrénées-Atlantiques](/source/Pyr%C3%A9n%C3%A9es-Atlantiques). It joins the Léez in [Lannux](/source/Lannux), in the French département of the [Gers](/source/Gers). It is 34.8 km (21.6 mi) long.[2]

## Name

The name is documented as *Arsiis* (1540), *Arciis* (1542), *Arcis* (1863). The name of the *Arcison*, a left tributary of the [Layon](/source/Layon), is related.

## Main tributaries

- (L) Lizo,
- (L) Léès, from Saubole.

## References

1. Paul Raymond, *Dictionnaire topographique du département des Basses-Pyrénées*, Paris, Imprimerie Impériale, 1863,

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Adapted from the Wikipedia article [Larcis](https://en.wikipedia.org/wiki/Larcis) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Larcis?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.