Mont Blanc du Tacul

The Aiguilles du Diable (literally "Devil's Needles", German: Teufelsspitzen) are a group of five rock needles, all over 4,000 metres high, on the southeast arête (also called the Teufelsgrat or Devil's Ridge) of the Mont Blanc du Tacul. The pinnacles lie within the French part of the Mont Blanc Massif in the departement of Haute-Savoie. The highest needle is L’Isolée (4,114 m), followed by Pointe Carmen (4,109 m), Pointe Médiane (4,097 m), Pointe Chaubert (4,074 m) and Corne du Diable (4,064 m). The first needle to be climbed was Pointe Carmen in 1923 which was conquered by Brégault, Chevalier and De Lépiney. In 1925 the others were first climbed: initially L’Isolée by Antoine Blanchet and Armand Charlet, then Corne du Diable and Pointe Chaubert by Armand Charlet and Jean Chaubert. The last to be ascended was Pointe Médiane by Antoine Blanchet, Jean Chaubert, Armand Charlet and Devouassoud. The first time all the needles were climbed in a single expedition was in 1928 by the Americans, Miriam O'Brien and Robert L. M. Underhill with Armand Charlet guiding them. Today a crossing of the Aiguilles du Diable is usually done as a rock climbing tour, which, in summer, avoids almost any contact with snow. The overall difficulty is assessed as "difficult" on the SAC scale and climbing grade V+ on the UIAA scale.

The Grand Capucin (3,838 m) is a rock pinnacle located underneath Mont Blanc du Tacul in the Mont Blanc Massif in Haute-Savoie, France.

Pointe Lachenal is a mountain in the Mont Blanc massif in the French Alps. It is located above the Glacier du Géant, under the East face of Mont Blanc du Tacul and opposite the Aiguille du Midi.The mountain is a mix of snow and rock, and has many rock climbing routes. Popular alpine tours such as the north face climb of Mont-Blanc lead over the crest of the Pointe Lachenal. It was named after French alpinist and guide Louis Lachenal (1921-1955).In the Annapurna Massif we find the mountain Lachenal Peak (7.140 m), also named after the same guide..

Mont Maudit (4,465 m) is a mountain in the Mont Blanc massif in France and Italy. The French name literally means "Cursed Mountain". Until the end of the 18th century, Mont Blanc and its satellite peaks were collectively known in French as the Montagne Maudite.

The Cosmiques Hut (French: Refuge des Cosmiques) is a mountain hut in the Mont Blanc massif in the French Alps at an altitude of 3,613 m (11,854 ft). It is a large structure capable of accommodating 148 mountaineers. It was constructed in 1990 on a rock promontory situated between the Col du Midi and the base of the Cosmiques Arête which descends southwards from the Aiguille du Midi. It gives access to a number of classic alpine mountaineering routes, and has proved to be extremely popular with mountaineers, so much so that in the summer months prior booking a few days beforehand is essential in order to secure a bed. The Hut is wardened between mid-February and mid-October. In winter the nearby Abri Simond Hut is left unlocked, although this has no cooking facilities, heating or water.

The Tour Ronde (3,792 metres (12,441 ft)) is a mountain in the Mont Blanc massif of the Alps, situated on the border between France and Italy. It is a prominent mountain, some 3.5 km north-east of Mont Blanc, but is effectively part of a continuation of the south eastern spur of Mont Maudit (l'Arete de la Brenva) which forms a frontier ridge between the two countries. It is easily accessible to mountaineers and provides not only a very good viewpoint from its summit of the Brenva face and the major peaks on the southern side of Mont Blanc, but it also offers a popular introduction to alpine climbing of all grades, including a north face ascent.

The Aiguille du Midi (French pronunciation: ​[eɡɥij dy midi]) is a 3,842-metre-tall (12,605 ft) mountain in the Mont Blanc massif within the French Alps. It is a popular tourist destination and can be directly accessed by cable car from Chamonix that takes visitors close to Mont Blanc.

The Mont Blanc Tunnel is a highway tunnel between France and Italy, under the Mont Blanc mountain in the Alps. It links Chamonix, Haute-Savoie, France with Courmayeur, Aosta Valley, Italy, via the French Route Nationale 205 and the Italian Traforo T1 (forming the European route E25), in particular the motorways serving Geneva (A40 of France) and Turin (A5 of Italy). The passageway is one of the major trans-Alpine transport routes, particularly for Italy, which relies on this tunnel for transporting as much as one-third of its freight to northern Europe. It reduces the route from France to Turin by 50 kilometres (30 miles) and to Milan by 100 km (60 mi). Northeast of Mont Blanc's summit, the tunnel is about 15 km (10 mi) southwest of the tripoint with Switzerland, near Mont Dolent. The agreement between France and Italy on building a tunnel was signed in 1949. Two operating companies were founded, each responsible for one half of the tunnel: the French Autoroutes et tunnel du Mont-Blanc (ATMB), founded on 30 April 1958, and the Italian Società italiana per azioni per il Traforo del Monte Bianco (SITMB), founded on 1 September 1957. Drilling began in 1959 and was completed in 1962; the tunnel was opened to traffic on 19 July 1965. The tunnel is 11.611 km (7.215 mi) in length, 8.6 m (28 ft) in width, and 4.35 m (14.3 ft) in height. The passageway is not horizontal, but in a slightly inverted "V", which assists ventilation. The tunnel consists of a single gallery with a two-lane dual direction road. At the time of its construction, it was three times longer than any existing highway tunnel.The tunnel passes almost exactly under the summit of the Aiguille du Midi. At this spot, it lies 2,480 metres (8,140 ft) beneath the surface, making it the world's second deepest operational tunnel after the Gotthard Base Tunnel. The Mont Blanc Tunnel was originally managed by the two building companies. Following a fire in 1999 in which 39 people died, which showed how lack of coordination could hamper the safety of the tunnel, all the operations are managed by a single entity: MBT-EEIG, controlled by both ATMB and SITMB together, through a 50–50 shares distribution.An alternative route for road traffic between France to Italy is the Fréjus Road Tunnel. Road traffic grew steadily until 1994, even with the opening of the Fréjus tunnel. Since then, the combined traffic volume of the former has remained roughly constant.

The Grands Mulets Hut (French: Refuge des Grands Mulets) is a mountain refuge in the Mont Blanc massif in the French Alps at an altitude of 3,051 m. It is owned by the Club Alpin Francais. The hut is located on a pyramidal rock island, at the junction of two streams of the Bossons Glacier on the north side of Mont Blanc. If the state of the glacier is not too severe, the hut is wardened in summer and can be used as an alternative route of ascent to the summit of Mont Blanc, following the original historic route by the first ascensionists. Nowadays the hut is used more frequently by ski-mountaineers in spring, or as a more sheltered and alternative route of descent from Mont Blanc than the much more popular Goûter route, though route-finding can be difficult in fog and requires prior knowledge of the crevassed state of the Bossons glacier below the hut.: 23 : 269 The first Grands Mulets hut was built in 1853, then replaced in 1896. The current refuge was built in 1960 and inaugurated on August 7 by Maurice Herzog.

The Géant Glacier (French: Glacier du Géant) is a large glacier on the French side of the Mont Blanc massif in the Alps. It is the main supplier of ice (via the Vallée Blanche) to the Mer de Glace which flows down towards Montenvers. It gets its name from the nearby Dent du Géant.

The Grand Pilier d'Angle (4,243 m) is a buttress on the southern side of Mont Blanc in the Mont Blanc massif in the Aosta Valley, Italy. The first ascent from the valley was by James Eccles with guides Michel Payot and Alphonse Payot on 30 July 1877 during an ascent of the Peuterey ridge, although the summit had been visited on 20 August 1822 by F. Clissold with guides J. M. Couttet, M. Bossonney, D. Couttet, P. Favret and J. B. Simond on the descent from their first ascent of Mont Blanc de Courmayeur. The first ascent of the pillar (the north-east face) itself was by Walter Bonatti and Toni Gobbi on 3 August 1957. Bonatti said after the climb that "the mixed terrain of the face was without doubt the most sombre, the most savage and the most dangerous of any that I have ever encountered in the Alps." The first winter ascent of the Bonatti-Gobbi route was by A. Dworak, J. Kurczab, A. Mróz and T. Piotrowski between 5 and 9 March 1971. The first solo ascent of the route was by Nicolas Jaeger on 3 August 1975. Other well-known routes on the face include the Cecchinel-Nominé (Walter Cecchinel and Georges Nominé, 17 September 1971; the Boivin-Vallençant of 1975 adds a direct finish to this route) and Divine Providence (Patrick Gabarrou and François Marsigny, 5–7 June 1984). The first solo ascent of this route was by Jean-Christophe Lafaille in 1990, who said, "This route is the most difficult and involving in the whole of the Mont Blanc massif."

The Brenva Glacier (French: Glacier de la Brenva, Italian: Ghiacciaio della Brenva) is a valley glacier, located on the southern side of the Mont Blanc massif in the Alps. It is the second longest and eighth largest glacier in Italy, and descends down into Val Veny, close to Entrèves, near Courmayeur. Over the centuries it has experienced a number of major rock avalanches which have shaped the glacier and influenced its movement.