Col de Marie-Blanque

Col de Marie-Blanque is a mountain pass in the western Pyrenees in the department of Pyrénées-Atlantiques in France. The pass is situated south-east of Oloron-Sainte-Marie and connects the valleys of the Aspe and the Ossau rivers.Details of the climbThe western side of the climb, starts from Escot on the N134. The climb is 9.3km long at an average gradient of 7.7% (height gain – 715m). Although relatively short, there are several long sections with gradients in excess of 11%.From Louvie-Juzon (east), the climb is 15.0km long. Over this distance, it gains 615m at an average gradient of 4.1%. The climb proper starts at Bielle on the D934 from where it is 11.5km long, gaining 585m at an average gradient of 5.1%, with a maximum of 8.5% near the start. En route, the climb passes the Plateau de Bénou.