Col de Restefond is a high mountain pass at an elevation of 2.680m (8,790ft) above the sea level, located in the French Alps, within the Mercantour National Park in the department of Alpes-de-Haute-Provence. The pass is located next to Cime de la Bonette.
The road to the summit is asphalted. It’s called C4 Route de Nice and is impassable due to ice and snow from November to May. The pics are taken on June. Close by are various ancient blockhouses, remnants of the Maginot Line's Alpine extension, the Alpine Line. It's one of the highest mountain roads of the country.
Starting from Saint Etienne de Tinée, the ascent is 23 km long. Over this distance, the elevation gain is 1.512 meters. The average percentage is 6.6 %. Around the Casernes de Restefond, an old military building, the percentage is around 8-9%.
The road on the summit runs from Nice to Briançon and was built in 1860, but the final route by the summit of the Bonette was built between 1960-1961.