Moulin Marquis-Porte du Diable
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Moulin Marquis-Porte du Diable

Moulin Marquis-Porte du Diable

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Discover the geological curiosities of the Vercors. Stunning landscapes await you with waterfall, cavity and spectacular passages.
Discover an important diversity of landscapes in just a few km; Meadows, forests, paths in balcony await you to see the cascade of Moulin Marquis (fall of 400m) or thePorte du Diable, a whole program!

6 points of interest


Small village of 250 inhabitants perched at 900 m of altitude, Saint-Julien-en-Vercors is dominated in the East by the Crests of Chalimont. One of the curiosities of the village is to the right of the entrance of the Church, in fact, a stalagmite with a cross has been installed there since 1832 by Jacques Borel. This stalagmite comes from the cave of Barmechinelle in the South of the Village. Since 1867, mining is prohibited.
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Moulin Marquis

Le Vercors est un massif karstique, l'eau y est rare, car elle s'infiltre dans le calcaire. Mais par endroit cette eau réapparaît à la surface, c'est ce que l'on nomme ; une résurgence.  Phénomène que l'on peut observer au Moulin Marquis avant de plonger dans la cascade qui porte le même nom. Au XIXème siècle cette eau était exploitée par un moulin, les habitants de Saint-Julien venaient y apporter le grain à moudre à dos de mulet par le petit sentier. A cette époque point de forêt, mais une belle prairie régulièrement fauchée.
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Cave of the Gauls

Overlooking the path, you can see the cave of the Gauls. It is a "window" cave that opens, after 300 m of underground path, in the north wall of the cliffs. Geologically, the Gaul cave is an ancient emergence which served as a drain to underground waters at a time when the level of the Bourne was higher. It is now a fossil cave, that is to say, without a subterranean stream. It is thus "perched" because its digging has been stopped by an impermeable geological layer.
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Cascade of Moulin Marquis and Cirque de Bournillon

From the path, a belvedere allows you to admire the waterfall of Moulin Marquis and the Cirque de Bournillon. With its 400 m of fall, it is one of the most important waterfalls in France. At its foot stands the cave of Bournillon. The waterfall then forms a small stream that joins the dam of Choranche.
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In a very forested environment, they are of course less visible than in the mountains, but we regularly receive images of a large male standing in the shade of the porch of the Gaulish cave. Although it is an emblematic of the Hauts Plateaux du Vercors, the ibex is not a mountain animal, but above all, a kind of rock. It particularly likes the steep terrain. Thus, ibexes are found in the walls bordering the Dead Sea (Jordan / Israel), 400 meters below the level of the oceans! In 1994, the Vercors Regional Nature Park reintroduced ibexes in the circus of Bournillon. Today, this population grows slowly, and occupies all the escarpments of the southern border of the gorges of the Bourne.
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The Porte du Diable

The Devil's Gate(Porte du Diable) is a natural rock arch, resulting from the erosion of limestone by an ancient stream, only the hardest rocks have resisted erosion. It is a karstic form. The origin of the name is not clearly defined.Is this a reference to the dangerousness of the place (the devil haunts the imaginary)?Is it, as the legend says, the devil fleeing before a saint?If yes which ?Is this a "dead end" way (Hell!) That this door offers?
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4.">Departure from Saint-Julien-en-Vercors village, direction Porte du Diable 4. 1, de là, rallier Les Barons 2, Le Devet 3.">Take the road passing behind the church and then left to the crossroads of Ponson 1, from there, rally Les Barons 2, Le Devet 3. The itinerary continues through woods and clearings before ending on a rocky outcrop; Cross in a few laces in order to join the Moulin Marquis on the left. From there, go back to the cave of the Gaulois, then we follow the cliffs that overhang the circus of Bournillon. Along the way, beautiful belvedere on the cave of Bournillon and the cascade of Moulin Marquis (caution, notably with the children). Some laces in the forest (well follow the yellow and green markings) go up to the Porte du Diable. Pass under the rocky bridge, climb carefully on a rocky vire (be careful in wet weather) to unclog the plateau of Saint-Julien (opposite, small belvedere on the Bourne gorges). The return to Saint-Julien-en-Vercors takes place for a good part in undergrowth before joining the crossroads of Ponson.
Departure : Saint-Julien-en-Vercors (parking village)
Arrival : Saint-Julien-en-Vercors (parking village)
Towns crossed : Saint-Julien-en-Vercors

Altimetric profile

Sensitive areas

Along your trek, you will go through sensitive areas related to the presence of a specific species or environment. In these areas, an appropriate behaviour allows to contribute to their preservation. For detailed information, specific forms are accessible for each area.
Peregrine falcon
Impacted practices:
Sensitivity periods:


The greatest caution is recommended in rainy weather, some passages can be particularly slippery.

Hold your children by the hand!

Information desks

Place Pietri, 26 420 La Chapelle-en-Vercors

04 75 48 22 54

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Access and parking

From Pont-en-Royans take the D531 towards the Gorges de la Bourne passing by the Balme-de-Rencurel, then crossing the Bourne take the D103 in the direction of Saint-Julien-en-Vercors (Parking at the entrance of the village).

From Villard-de-Lans take the D531 towards the Gorges de la Bourne, then the D103 towards Saint-Julien-en-Vercors (parking at the entrance of the village).

Parking :

Parking village

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