Asasp-Arros is located 6 km south of Oloron-Sainte-Marie on the left bank of the Gave d'Aspe and straddling the old royal route built by Louis XIV to Canfranc in Spain.

[3] The commune consists of two portions joined by a narrow neck of land just south-west of Lurbe-Saint-Christau.

The Mielle continues north to join the Gave d'Oloron south-east of Moumour.

From 1956 until 1971 (the date of merging with Asasp) Arros was called Arros-d'Oloron[3] to differentiate it from Arros-de-Nay.

[24] Domec was a fief, vassal of the Viscounts of Béarn, cited in 1863 [26] in the forms: Hourcq was an area in Asasp in 1863.

[7] Le Lagnos is a forest in Asasp, which in 1538 was called Lo Lanhos (,[8] Reformation of Béarn[27]).

It was then replaced with a bridge, making the village an important stage on a secondary way on the via Podiensis (or Puy Route), one of the modern paths on the Way of St. James.

The Rugby union club (ASAAR) plays in the championship of France in the 2nd series.