Built between 1843 and 1854, Les Grands-goulets Road is a superb route that links the Royans area to the Vercors Central (France). The construction of this road was a huge human and financial investment.
This infamous road is tightly hairpinned and bumped, an exquisite winding mountain drive with sharp and blind curves and hairpin switchbacks leading the traveler over the mountains. The road includes some steep sections, without market central lines, is very narrow, barely wide enough for 2 cars at the same time and it has not protections or guardrails.
After la Plaine du Royans and the Petits Goulets, there is a succession of impressive tunnels that give access to the green hilly area of Echevis, stuck between the white cliffs of the Arps and the Allier.
The road's winding design, providing stunning panoramic views, is very curvy and fun for a leisurely ride, so it pays to take it slow. Exercise extreme caution when passing on-coming traffic, over-taking and around corners.
This small valley narrows 20 km further above the Vernaison River that turns into a 200 m high waterfall. The road becomes magnificient with the rock just over your head.
The space between mountains is really tiny and on the opposite side of the road, the mountain is called "Rochers d'Echevis"...
To arrive to this road, at Pont en Royans, take direction La Chapelle en Vercors via Sainte Eulalie en Royans. It finishes in a village called "Les Barraques en Vercors"...
Unluckily, the road was closed to all kind of vehicles recently, after 156 years in use. Some accidents causing several death, forced the French government to close the road.