The Aralla Pass is a mountain pass located in the province of León, Spain, at an altitude of 1,536 meters. It is crossed by the LE-473 highway and connects Aralla de Luna (municipality of Sena de Luna) with Geras (municipality of La Pola de Gordón).
It has an average gradient of around 7%, with no steep but steady slopes, generally classified as a second-category cycling pass. The climb offers beautiful views and can be combined with routes to the Arbás Valley and Villamanín, although some roads may be in uneven condition.
At the summit, there is a monument in memory of the victims of the Civil War, highlighting the figure of Captain Rodríguez Lozano, who was shot in 1936. The area is popular for motorcycle tours and hiking, with several restaurants and local products such as cured meats in Geras and Aralla. In winter, the road is often impassable due to snow and snow removal service is poor.