Les Drus, France

Les Drus

Location: French Alps Map
Height: 12,316 ft (3,754 m)
Ofice du tourisme
Chamonix
Tel. 50 53 22 08
Weather conditions:
Tel. 50 53 03 40
winter 50 53 17 11

 

Description

Les Drus (Aiguilles du Dru) is one of the most iconic and striking granite peaks in the Mont Blanc massif, towering dramatically above the Chamonix Valley in France. Located east of Les Praz, the twin summits—Petit Dru (around 3,733m) and Grand Dru (3,754m)—feature sheer vertical faces, particularly the legendary North and West Faces, making them a symbol of alpine climbing heritage.
The mountain is renowned for its technical granite climbing, exposed ridges, and historical significance (first ascents in the late 1870s, with major routes like the North Face in 1935 by Pierre Allain). It offers breathtaking views over the Mer de Glace glacier and surrounding peaks like Aiguille Verte.
Visiting Les Drus ranges from scenic viewpoints for casual hikers to serious multi-day alpine climbs for experts. Here’s an in-depth guide with practical tips.

 

Visiting tips

1. Best Time to Visit
Summer (June–September): Prime season for climbing and high-alpine access. July and August are ideal for drier rock and stable weather, though rockfall risk increases in hot conditions.
Avoid shoulder seasons if inexperienced, as snow/ice can glaze rocks and increase avalanche/rockfall hazards.
Check conditions daily: Rockfall is a notable risk on faces like the North Face (especially the “Niche” hanging icefield). Cold nights help stabilize things.
Weather: Mountain weather changes rapidly. Use reliable forecasts (e.g., MeteoBlue or local hut guardians). Thunderstorms are common in the afternoon.

2. How to Get There (Base: Chamonix)
Chamonix serves as the main hub (easy access from Geneva Airport via shuttle ~1 hour).
For Viewpoints (Non-Climbers): Take the Montenvers train (from Chamonix) to admire Les Drus towering over the Mer de Glace. Hikes from there or cable cars (e.g., Grands Montets area) offer excellent panoramas without technical terrain.
For Climbs/Huts: Montenvers train → descend to Mer de Glace glacier → cross and ascend to Charpoua hut (main base for south-side routes).

Approach to Charpoua Hut (2,841m):
Train to Montenvers (~1,913m).
Ladders and glacier crossing, then a steep 3–4+ hour hike with fixed cables in places (exposed, requires no vertigo and basic mountaineering experience).
Alternative approaches from Grands Montets for north/west faces (more demanding).
Tip: Book the Montenvers train in advance during peak season. Carry crampons/ice axe for glacier travel early or late season.

3. Accommodations
Refuge de la Charpoua: The classic base camp at the foot of Les Drus. Small (oldest and tiniest in the valley, ~14 bunks), historic, and atmospheric. Renovated in recent years. Half-board, B&B, or bed-only options. Silk liner/sleeping bag liner mandatory. Bring your own water (limited supply).
Book well in advance via their website or phone. Mandatory reservation.
Bivouac: Common for north/west face routes (no hut access). Plan for high-alpine camping.
Chamonix Valley: Hotels, campsites (e.g., Les Praz or Les Bossons), gîtes for before/after. Many options for all budgets.

4. Main Activities and Routes
For Casual Visitors/Hikers:
View from Montenvers or balcony trails in the valley.
Longer hikes in the area for panoramic views (e.g., towards Aiguille Verte).

For Climbers (Experienced Only):
Traverse des Drus (Normal Route / Voie Classique): The most reasonable “easiest” way up. Involves south face, ridge traverse (Petit to Grand Dru), and abseils down. Rated ~D+ (difficult), with 5c/6a pitches in boots + backpack. Often 12+ hours from hut; multi-day guided trips common.
Requires excellent rope skills, abseiling proficiency, glacier travel, and high fitness.
North Face Routes: Legendary and committing (e.g., Pierre Allain route). Much harder, with rockfall risks.
Other Classics: American Direct, Bonatti Pillar (partially affected by rockfall), Voie des Guides, etc.

Guided Trips: Highly recommended for first-timers. Companies like Chamex offer 3-day packages (~€3,190 for 1:1 guiding).
Equipment: Helmet, harness, crampons, ice axe, double ropes, rock rack, mountaineering boots, warm layers, headlamp, etc. Acclimatization is essential.

5. Safety and Essential Tips
Technical Difficulty: Not for beginners. Strong rock climbing (granite), exposure, route-finding, and descent skills needed. Many sections have loose rock.
Rockfall & Objective Hazards: Significant risk, especially in warm weather. Start very early (e.g., 1 AM from hut). Monitor for changing conditions.
Physical Demands: Long days (12–26+ hours for traverses), elevation, carrying packs. Excellent stamina required.
Rescue: Expensive in France. Have insurance (e.g., via UIAA or specialized alpine policies). Carry a phone (limited signal—consider satellite device).
Leave No Trace: Respect the fragile high-alpine environment. Follow hut rules strictly.
Acclimatization: Spend time at altitude first (e.g., other Chamonix peaks).
Partners/Guides: Solo only if highly experienced. Conditions can deteriorate fast.
Emergency: Know the local mountain rescue number (e.g., 112 in Europe, or specific Chamonix services).

6. Additional Tips
Permits/Regulations: No special permits usually, but hut bookings are essential. Check for route closures due to rockfall.
Sustainability: The Alps face climate impacts (glacier retreat, rockfall). Be mindful.
Cultural Note: The area has a rich climbing history—read up on legends like Walter Bonatti or modern ascents for inspiration.
Combine with Other Activities: Pair with Mer de Glace visit, Aiguille du Midi cable car, or easier hikes.
Budget: Expect high costs for guides, huts (~€50–100/night half-board), and transport. Plan for weather days.

 

Ascents

Location: East of the Aiguille Verte on its west ridge, entirely in French territory in the Chamonix Valley.
Rock: High-quality granite, though the mountain is notorious for instability and rockfall (major events in 1997, 2005, 2011, etc., especially on the West Face).
Terrain: Predominantly rock climbing with some mixed/ice elements possible. Even "easier" routes are long, sustained, alpine-style endeavors with complex route-finding, loose sections, and serious descents.
Reputation: A testpiece for experienced alpinists. Routes demand strong rock skills (crack climbing, chimneys), altitude tolerance, and risk management. No truly easy way up or down.

Climbing History Highlights
First Ascent Grand Dru: 12 September 1878 by Clinton Thomas Dent, James Walker Hartley, with guides Alexander Burgener and K. Maurer (southeast face). Dent praised its continuous interesting rock climbing.
First Ascent Petit Dru: 29 August 1879 by J. E. Charlet-Straton, P. Payot, and F. Folliguet (south face/southwest ridge).
First Traverse (Petit to Grand Dru): 1901 by E. Fontaine and J. Ravanel.
North Face Milestone: 1935 by Pierre Allain and Raymond Leininger (Allain-Leininger route) — a landmark in big-wall alpinism.
West Face & Bonatti Pillar: Walter Bonatti's legendary 6-day solo ascent in 1955 on the southwest pillar (now largely destroyed by rockfall). American teams (Hemming/Robbins) added direct routes in the 1960s.
Modern/Extreme: Free solos (e.g., Christophe Profit on American Direct), winter ascents, and new mixed lines like BASE (M8+, 2021 by GMHM team). The peak remains a venue for cutting-edge climbs.
A Madonna statue was placed on the summit in 1919 and remains a landmark.

Major Ascents and Routes
Routes vary from classic traverses to extreme big-wall lines. Difficulties use the French alpine grading system (e.g., AD = assez difficile, D = difficile, TD = très difficile, ED = extrêmement difficile).
1. Traverse of the Drus (Traversee des Drus / Petit Dru to Grand Dru)
Difficulty: D to D+ overall (max ~5c/6a rock, some A0).
Length: Long day or multi-day (e.g., 10+ hours; guided trips often 3 days).
Description: The "easiest" and most classic way to experience the peaks. Involves complex ridge terrain, gendarmes, scrambling, and technical passages. Starts via Flammes de Pierre ridge approach. Highly committing with sustained interest and exposure. Often combined with extensions toward Aiguille Verte.
Why popular: Iconic, varied, tests route-finding and endurance. Still serious—no pushover.

2. Petit Dru Normal Route (South Face)
Difficulty: D- (IV, with a 5c move), ~400 m.
First Ascent: 1879.
Approach: Via Charpoua Hut (from Montenvers, cross Mer de Glace, ~3-4 hours to hut).

3. North Face Routes (Petit Dru)
Allain-Leininger (Classic North Face): TD+, 5c, ~850-1,000 m. Steep cracks, grooves, chimneys; mixed near top. One of the six great north faces. Winter ascents add significant challenge.
Other notable: Polish Route ("Petit Jean"), Northeast Couloir (ice to 80°).

4. West/Southwest Face Routes
Bonatti Pillar: Historic ED+ solo (now largely gone due to 2005 rockfall).
American Direct: ED-, 6c (6b obbl.), ~1,000 m (link-ups with North Face possible). Sustained, athletic crack climbing.
American Direttissima: Even harder (destroyed in rockfalls).
Modern: BASE route (mixed, high difficulty) follows similar lines.
Note: West Face is highly unstable—major rockfall risk. Check conditions carefully.

5. Other South Face Routes (Grand Dru)
Normal Route: AD.
Voie Contamine: TD, 6a+, 650 m (excellent rock).
Pilier du Trident, etc.: TD to TD+.
Many routes involve 20-35+ pitches, with alpine commitment.

Approach and Logistics
Primary Access: Montenvers train station (from Chamonix). Cross Mer de Glace (ladders/fixed ropes due to glacial retreat).
South routes → Charpoua Hut (small, reservations needed).
North/West → Bivouac at Rognon du Dru or similar (no hut).

Alternative: Grands Montets area (more arduous now).
Time: Approaches take 2-5 hours depending on side; full climbs often require bivouacs.

Best Season: Summer (dry rock), but rockfall increases with warmth. Winter/spring for mixed/ice lines (colder, more stable but harder). Always monitor weather and conditions.
Gear: Standard alpine rock rack (cams, nuts, slings), crampons/ice axe for approaches/glaciers, bivy gear for longer routes.

Challenges and Considerations
Rockfall Hazard: Significant, especially West Face. Melting permafrost exacerbates this.
Commitment: Long routes, difficult retreat, complex descent (often rappels + downclimbing).
Physical/Technical Demands: Strong crack climbing, route-finding, endurance at altitude.
Objective Dangers: Weather changes rapidly; stonefall common.
Current State: Some classic lines altered/destroyed. New routes continue to be established.

 

Geography

Location and Setting
Coordinates: Approximately 45°55′58″N 6°57′23″E.
It rises dramatically east of the village of Les Praz in the Chamonix Valley, on the northern side of the Mont Blanc massif in the Graian Alps.
It sits on the western ridge of the higher Aiguille Verte (4,122 m / 13,524 ft), separated by a deep notch and a long connecting ridge.
The peaks tower above the Charpoua Glacier and are visible from much of the Chamonix valley, including iconic viewpoints like the Montenvers train station overlooking the Mer de Glace (Sea of Ice).
The mountain is renowned for its striking, needle-like profile ( "Aiguille" means "needle" in French), making it one of the most photogenic and recognizable features in the Alps.

Topography and Structure
Les Drus consists of two distinct summits connected by the Brèche du Dru (a col/saddle at 3,697 m / 12,129 ft):
Grand Dru (Grande Aiguille du Dru): 3,754 m (12,316 ft) — the higher main summit.
Petit Dru (Petite Aiguille du Dru): 3,733 m (12,247 ft) — the slightly lower neighbor.
From a distance, it appears as a colossal rocky pyramid or monolith, but it is composed of these two nearby peaks. The structure features extremely steep, vertical granite walls, including:
A west face nearly 1,000 meters (3,280 ft) high — one of the steepest and most impressive in the Alps.
A legendary north face (particularly of the Petit Dru), counted among the six great north faces of the Alps.
The terrain is characterized by jagged ridges, sharp spires, exposed granite slabs, couloirs, and significant vertical relief. It drops sharply toward the Chamonix Valley and surrounding glaciers.

Geology
Les Drus is formed almost entirely of Mont Blanc granite (a coarse-grained calc-alkaline granite). This rock dates back to the Hercynian orogeny (~305 million years ago).
The granite is known for its quality but also its tendency to fracture, leading to periodic major rockfalls (notably in 2005, which destroyed classic routes like the Bonatti Pillar on the southwest face).
The rock is protogine (a variety typical of the Mont Blanc area), contributing to the light-colored, fractured appearance and the dramatic, sheer cliffs.
This geology creates excellent (though sometimes loose) climbing rock but also makes the mountain dynamic and subject to ongoing erosion and instability.

Glaciers and Surrounding Features
The peaks rise directly above the Charpoua Glacier (to the south/west).
Nearby are other major glaciers like the Mer de Glace and Glacier du Talefre.
The surrounding landscape includes high-alpine meadows, moraines, extensive snowfields (especially in winter/spring), and the broader Mont Blanc range with its mix of granite spires, icefields, and deep valleys.

Significance and Human Context
Geographically, Les Drus serves as a dramatic sentinel overlooking the Chamonix Valley, one of the world's premier mountaineering and tourism hubs. Its position on the western ridge of Aiguille Verte makes it a key feature in the complex ridge systems of the Mont Blanc massif.
It is a world-famous destination for technical alpinism, with routes ranging from the "easiest" (still AD difficulty) to extreme big-wall style climbs on its vast faces. The mountain's imposing presence has played a major role in the history of modern mountaineering.
In summary, Les Drus exemplifies the raw power and beauty of the French Alps: a towering granite fortress with razor-sharp profiles, immense vertical walls, and a location that offers unparalleled views of the Mont Blanc region while posing serious challenges due to its steepness, rock quality, and exposure.