Col de Cibières is a gravel road in the Alps

Col de Cibières is a high mountain pass at an elevation of 2.525m (8,284ft) above the sea level, located in the Hautes-Alpes department in southeastern France.

Col de Cibières

The road to the summit is unpaved, with much large stones on it. It’s a military training area, so it’s necessary to get a permit to access the zone. The road is impassable from September to June (weather permitting). This is the last gravel road leading off to the left on approaching Col de Granon (only a few meters before it).
Starting from Col du Granon, the ascent is 2.5 km long. Over this distance the elevation gain is 112 meters. The average gradient is 4.48%.
Pic: https://cyclocolsensolo.files.wordpress.com/2014/07/col-des-cibic3a8res.jpg