Col de Portet d'Aspet is is a Cat 2 climb in Haute-Garonne. The summit is 1069 metres altitude. It is situated on the D618 road between Aspet, Haute Garonne to the west and Saint-Girons, Ariége in the east. The climb is short but very steep on the western side. It was in the first mountain stage in 1910 Tour de France.