Grande Traversée du Mercantour
The great nature trek through the Maritime Alps! At the foot of the peaks which reach 3000m in height, an exceptional adventure in the Mercantour National Park: the sunny side of the wild Alps and a delightful view over the Mediterranean to finish up!
With the Grande Traversée du Mercantour, hikers and nature lovers have 17 days to enjoy some of the finest landscapes in the Mediterranean Alps.
Estenc plateau hay meadows
The term “hay meadows” means areas of production of fodder which was not deliberately planted and which are rich in variety of species. The hay is harvested to feed animals. These meadows are part of the non-intensive and environmentally friendly practices and they encourage a wide variety of plants to grow.
Mercantour National Park has 1000ha of hay meadows, included in a pastoral and grassland domain covering around 120000ha. Within this, 90 professional farms are based in the Park’s communes and 268 transhumant farmers are present in summer.
La Cantonnière refuge
The history of the refuge is closely linked with the Route des Grandes Alpes connecting Lac Léman with the Mediterranean. It was built in the early 20th century by the French Touring Club with the very rudimentary means of the period by Italian workers, for whom the imposing Cantionnière house was built.
Accessible in summer 1913 to the few automobiles which were around at the time, the road was to be inaugurated by President Poincaré in August 1914. But the declaration of war deprived the people of Entraunes of this visit.
The building today serves as a refuge and has been fully renovated by Mercantour National Park.
Capacity: 36 in dormitories of 2, 4, 5 and 18.
Prices and opening periods: http://lacantonniere.wixsite.com/refugelacantonniere
Tel: 04.93.05.51.36
E-Mail: lacantonniere@gmail.com
Estenc

Alpine ibex (Capra ibex)
A symbol of the high mountains and their giddying peaks, this ungulate disappeared from this region more than 150 years ago.
Since 1987, reintroduction operations have been jointly undertaken by the Mercantour National Park and the Parco naturale Alpi Marittime.
A group of fifty or so have settled at Roche Grande.
To allow them to be identified, the animals are given coloured ear tags. The park staff regularly monitor the development of the species.

Siberian cricket (Aeropus sibericus)

Pastoralism

Military remains

The Estrop lakes

White-tailed ptarmigan (Lagopus mutus)

Gialorgues refuge
Capacity: 12 in refuge
Warden: No
Opening period: All year
Obligatory reservation
Pick up and drop off point for keys:
Hôtel Regalivou
04.93.02.49.00
St Etienne de Tinée
M. FERRAN 04.93.05.54.22
Estenc
In case of problems:
contact Nice CAF
michelle@cafnice.org
04 93 62 59 99
Useful numbers:
Park House: 04 93 02 42 27
St-Etienne de Tinée Tourism Office: 04 93 02 41 96
St-Dalmas Lodge: 04 93 02 44 61

Removal zones
The depression on your right was one of the zones from where material was removed from to build Camp des Fourches at the start of the last century. The former military dry-stone track allows you to reach Cime de Pelousette.

Lac de Vens and refuge
The Vens refuge only has a warden during the summer months. In winter, only one room is open to allow hikers to shelter. The Vens refuge overlooks a series of lakes of the same name. These lakes are of glacial origin, they are the result of a long erosion process by glaciers. The lake below the refuge (the biggest) is 31 metres deep. Ibex, chamois, mouflons and golden eagles can often be seen at the site. Very close to the refuge, you can see the endemic plant which was for a long time the symbol of the Mercantour National Park: Saxifraga florulenta.
Club Alpin Français: Capacity: 45 in summer and 30 in winter (no warden)
Reservations only be e-mail in summer: http://refugedevens.ffcam.fr/reservation.html
No shower, meal included
The Druos Artillery Battery
Near the Bassa del Druos there are the ruins of a shelter and the Druos Battery, a defensive military gun emplacement in a cave of the Vallo Alpino. The artillery battery, realized with minimum investment in the mid-thirties, consisted of 4 100/17 howitzers captured from the Austrians in WWI. The guns were positioned in the cave without any shielding whatsoever: there wasn't even a command room inside. Two of the 4 galleries where the cannons were placed can still be seen clearly, but the entrances to the other two have been obstructed by landslides.

The Massimo Longà Barracks
The barracks are named for Massimo Longà, Captain of the Alpine Corps, who died on Monte Ortigara on 10 June 1917 (to be precise, on an Army Corps of Engineers map, the Rifugio's name is indicated as Massimo Mongà, differently from the inscription on the plaque over the main entrance). The barracks building is an imposing structure, built, according to documents of the Engineering Corps, in 1903. Other sources give the date of its construction as between 1916 and 1917, thanks to the forced labor of Austrian prisoners captured on the Eastern front, but if the Engineering Corps documents can be believed, it is more probable that the barracks were only restructured during the WWI years.

The former military mule track "Valscura Barracks - Fremamorta Shelters"
The portion of the route that runs from Lower Lake Valscura to Lake Claus follows the former military mule track that linked Valscura and Fremamorta. The mule track is one of the best-preserved examples of the old military roads that ran through the Valle Gesso, as well as a true masterpiece of engineering. Realized sometime around the very first years of the nineteen hundreds, a decade prior to the start of the second world war, in 1929, it was preventively upgraded by the Dronero Battalion and maintained in perfect condition.
Over 10 km long, it never dips below an altitude of 2,000 meters and has a maximum incline of 18%. Portions of the road were skillfully paved with flagstones, still in place today.

The Umberto I shelter
This is in fact a large barracks, designed to house 130 soldiers and 4 officers. Built in 1894, it was readapted on three separate occasions, the last of which in 1934, when another section was added on one side of the main building to house the kitchen, and a freestanding structure was also erected. The ruins of an old storage barn and stables can be seen just above the barracks.

The Cima di Fremamorta barracks
The barracks building is an imposing structure and is still in relatively good condition: The camouflage paint on the doors is still visible, and there are a good number of windows and doors left, outside and inside. Outside, there are traces of the open-air kitchen, used by the troops during the warm months. The barracks could house a garrison of 60.
Along the last stretch of uphill trail, as well as in the nearby Val Morta, there remain a few telephone poles in larch, on which were strung the wires for communications between defensive outposts.

Argentera granite
If you look closely at this grey rock, you will see that it is made of different minerals. Quartz (grey) and feldspar (white) sometimes big with a few sparkling areas here and there on the rock. This is black mica and more specifically biotite.
You have discovered blocks of granite. All the minerals it is made up of are contiguous and visible with the naked eye. The texture is igneous, characteristic of plutonic rocks which crystallised deep in the earth.
Cattle farming in the Mercantour
As you head up the Salèse valley in the summer, you will undoubtedly cross paths with a herd of fine cows grazing in the light undergrowth of the larch forest, which is a particularly favourable activity in these areas. After they have been milked on site, the milk is taken to the Boréon, where it is made into a cheese with an AOC label: “tome de la Vésubie”.
The very old dairy farming tradition in the Mercantour is sadly dying out today and being replaced with extensive sheep farming. This has certain disadvantages: overgrazing in some areas and greater vulnerability to predators, etc.
Village of Boréon
In the past, Boréon was part of Italy and only became French in 1947; its access road dates from the 1950s. This domain of more than 4000 hectares, a former reserve of the kings of Italy, essentially consists of pasture and forests. It was formerly a haunt of salt smugglers.
Today, all of this natural valley is a classified site. Its development is based on tourism which respects natural environments.
La Cougourde refuge
Club Alpin Français
Warden: June – September: Manuel Putelat
September – June: Charly Barcelo: 06 18 54 02 43
Reservations by telephone or e-mail: refugelacougourde@ffcam.fr
Refuge landline: 09 78 23 31 59
Website: http://refugelacougourde.ffcam.fr/
Useful numbers:
St-Martin-Vésubie Tourism Office: 04 93 03 21 28
Park House: 04 93 03 23 15
Mountain climbing in the Mercantour

Terre de cour

The scars of erosion

Col de Fenestre mule track

La Madone de Fenestre sanctuary

La Madone de Fenestre refuge
Club Alpin Français
Capacity: 62 Possibility of eating and having a shower
Warden: Mid-June to late-September + school holidays and weekends in winter
Tel. 04 93 02 83 19
Out of season upon reservation: Patrick Miraillet: 04 93 03 91 02
Online reservations: http://chaletmadonedefenestre.ffcam.fr/
Useful numbers:
St-Martin-Vésubie Tourism Office: 04 93 03 21 28
Park House: 04 93 03 23 15
Chamois (Rupicapra rupicapra)

The Salt Road
The track which leads to the Nice refuge is one of the secondary passages of the Salt Road via the “Pas de Pagari”. Frequented since ancient time, this Pas gets its name from Paganino dal Pozzo,an Italian entrepreneur who, in 1453, was appointed as salt tax adjudicator by the Duke of Savoie.
Paganino was responsible for the construction of a new route via the “Pas de Pagari” to transport salt from Provence to Cuneo in Piedmont.

The eclogite of Lac Niré
Just above Lac Niré, on the right bank of the mountain stream, among the migmatite, can be found very dark rocks which take the shape of huge lentils (geologists call them “black puddings”).
When you look closely at these one of these lentil, you can see very different minerals to the ones you find in migmatite. The rusty red coloured ones are garnet and the darker ones are amphibole.
This very distinctive rock with characteristic fine and very dense crystals is eclogite; it is quite rare and a remainder from oceans which have disappeared. It is a metamorphic rock which springs from the transformation of basalts, ancient lava from the oceanic crust.

Redoute des Trois Communes
La Redoute des Trois Communes is a French fort which was built in 1898, in the Authion mountain chain under the command of Général Séré de Rivières.
In the 1870s, relations between France and Italy were conflictual. When the Comté de Nice became part of France (24th March 1860), it made Authion even more important as it had become a border chain, the keystone of defending the Maritime Alps. Huge fortification works began to make any possibility of the Italians breaking through impossible. Access to the chain was facilitated by several strategic roads being opened, leading to La Redoute des Trois Communes (1898) and to the forts of La Forca (1883-1890) and Mille Fourches (1883-1890).
L'Authion
Glory and exaltation, but also suffering and death. L'Authion has seen the tragic end of many a life.
In April 1794, the Italian army, commanded by Generals Bonaparte and Masséna, fought against Austro-Sardinian troops: after extremely violent battles, L’Authion was taken. The Piedmont road was open to the French!
Then spring 1945 also saw L'Authion’s destiny being determined by more modern weapons. Despite the Operation Dragoon Provence landings in August 1944, the Alpine front, including the advanced post of L'Authion, was solidly held by the German army.
On 1st March, General de Gaulle created the Alps Army detachment, which was responsible for defending communication lines.

A natural fortress
Authion is a natural fortress which is virtually unconquerable, protected by its immense and steep slopes which "tower 1500m above the valleys of Caïros, Roya and Bévéra".
The relief provides no refuge, no hiding place for attackers who are extremely vulnerable. “You only need a very few men in a dominant position to completely close off access”. (Général Y. Gras).
At the very top, the summits which tower over the 2000m mark are equipped with fortifications which the “the gigantic field work and network of mines” make impregnable.
Just one weak spot: the south!
22nd March 1945
The order is received “to look into the possibilities of attacking the fortified mountain of L’Authion”. It would be “a powerful frontal attack on L'Authion that two columns, approaching from either side, would take it from behind, one via Col de Raus and the other via Ortighea Giagiabella ".
On 9th April, a general offensive by the Allies was launched on the Italian front. The enemy was to be pinned onto L'Authion.
The weather played its part: snow and mist enveloped L’Authion, forcing everyone to go through the anxiety caused by silence and expectation.
On 10th April, the bombing of the forts by military aircraft formed a brutal wakeup call, France launched an offensive and too the Forca ridge.Altimetric profile
Recommandations
Access and parking
For those who choose to opt for public transport, here are the main connections from Nice, and links to the relevant web-sites to access information online:
- Estenc: line 790 Nice - Entraunes (terminates at Entraunes village).
All information on www.lignesdazur.fr or www.ceparou06
TRANSPORT ON DEMAND
In order to facilitate the access to Estenc village, the Département set up with the Region transport on demand service, connecting with the regional line Nice / guillaumes / Entraunes. This service (booking requested) operates only on July, august and September. For more informations about schedules and use please connect to the website www.randoxygene.org
To travel back from Menton to Nice,
Transport possibilities:
- by bus: line 100 Menton - Nice : all information on www.departement06.fr or www.ceparou06.fr
- by train: line SNCF Menton - Nice : all information on www.ter.sncf.com/paca or www.ceparou06.fr
Report a problem or an error
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