Col de la Pertie
Col de la Pertie is a mountain pass at an elevation of 972m (3,188ft) above the sea level, located in the Drôme department in southeastern France.
The road to the summit is asphalted, but in very bad conditions. It’s called D570. It’s pretty narrow and steep (with sections up to 11%). Starting from Villeperdrix, the ascent is 12.62 km long. Over this distance, the elevation gain is 591 meters. The average percentage is 4.6 %.