Saint Médard – St Pierre – Haut Mauco – Bas Mauco – St Sever – Audignon -Doazit – St Criq Chalosse – D58 – Route de Cazalis – Momuy – D439 – Route de Monségur – Montségur – Samadet – Aubagnan – Route de Bascos – Route de Lahouze – Fargues – Grenade – Bascons – Bretagne – St Médard.