The Route nationale 22 (RN22) is a highway in southern France, connecting l'Hospitalet-prĂšs-l'Andorre to Pas de la Casa in the Principality of Andorra. On the French side of the border at Pas de la Casa, the RN22 also connects to the Envalira Tunnel (Catalan: TĂșnel d'Envalira), which is an alternative route into Andorra avoiding the Envalira Pass (Catalan: Port d'Envalira).
The road is a branch of the N20, and runs parallel to the RN320 which crosses Col de Puymorens. The roads follow the same route for a few kilometers.