How difficult is Mont Blanc via the Trois Monts?

It is the most technical and demanding of our three routes. You need solid mountaineering skills, including steep ice and crevasse navigation, and summit day has about 1,200 m of ascent and 2,500 m of descent.

Which routes can I choose?

The itinerary follows the Trois Monts route over Mont Blanc du Tacul and Mont Maudit, descending via the Goûter. We also guide the classic Goûter route (4 days) and the quieter Grand Mulets route (3 days). Tell us about your experience and we will recommend the best option.

In a gîte or hostel in Chamonix or Les Houches, and at the Cosmiques Hut (3,613 m) the night before the summit.

What is not included?

Cable cars and the cog railway, personal equipment (harness, crampons, ice axe), meals and drinks, and travel insurance with alpine rescue cover, which is mandatory.

Is there a minimum age?

Yes, participants must be at least 18. The trip starts in Chamonix.

Mont Blanc Ascent (4,808 m) – Trois Monts, Goûter & Grand Mulets Routes

Tour Details

oin us for a guided ascent of Mont Blanc (4,810m), the highest peak in the Alps, and one of the most iconic mountaineering challenges in Europe. This all-inclusive expedition is led by professional mountain guides and guarantees an unforgettable experience in the heart of the French Alps.

Why Climb Mont Blanc?

The highest peak in Western Europe

A classic alpine ascent with stunning glacier landscapes
Professional guides & expert planning
Multiple route options for different experience levels

Due to increasing restrictions and safety concerns, local authorities have implemented permit requirements and accommodation limitations for climbers on Mont Blanc. To navigate these challenges, our agency organizes group expeditions, ensuring a smooth and hassle-free experience.

Mont Blanc Ascent – Trois Monts Route

The Trois Monts Route is the most technical and demanding ascent of Mont Blanc in our selection. Despite its difficulty, it is the second most popular route after the Gouter Route, mainly due to the high starting altitude.

This glacier traverse offers stunning ridge-line views, but requires strong mountaineering skills, including steep ice climbing and crevasse navigation.

Why Choose Trois Monts?

A true high-altitude mountaineering challenge
Starts at Aiguille du Midi (3,842m), reducing elevation gain
Breathtaking views & exposure
Cosmiques Hut stay – famous for its stunning sunsets

Additional cost for the Trois Monts Route: on request.

Choose your route

We guide Mont Blanc on three routes. The itinerary below follows the Trois Monts route – the other two are available on request:

Trois Monts route (4 days) – from the Aiguille du Midi over Mont Blanc du Tacul and Mont Maudit, with a night at the Cosmiques Hut. The most technical of the three.
Goûter route (4 days) – the classic normal route from Les Houches via Nid d’Aigle, Tête Rousse and the Goûter Hut (3,835 m). Technically easier, but it crosses the Grand Couloir, where timing is critical.
Grand Mulets route (3 days) – from Plan de l’Aiguille across the Bossons Glacier to the Grand Mulets Hut (3,051 m). A quieter glacier route, often used early in the season.

Not sure which route suits you? Tell us about your mountaineering experience and we will recommend the best option.

Departure & Return Location

Chamonix, France (Pick up)

Departure Time

Choose a private tour on dates that suit you or join a group departure.

Price on request – send us an enquiry and we will prepare an offer for your dates and group size.

Price Includes

Trip organization
Licensed IFMGA mountain guide (all guiding fees covered)
Accommodation: Gîte/hostel (Chamonix or Les Houches)
Mountain hut (route-dependent) OR Pre-set basecamp tent (multi-person shared)
Program Note: "Mont Blanc via Trois Monts Route" does not include anything not listed under "Included."

Price Excludes

Cable cars & cog railway
Gondola tickets (required for certain ascents)
Personal equipment (harness, crampons, ice axe, etc.)
Meals & beverages
Costs outside the program
Travel insurance (mandatory) + Alpine rescue coverage (helicopter evacuation required)
Anything not explicitly listed under "Included"

Supplemental Fees

Single room upgrade: on request (Chamonix hotel only - subject to availability)
Weather postponement: on request (guide's discretion)
Private guiding options: Solo climber supplement: on request (must request 30 days prior)
Trois Monts route surcharge: on request (per team)
Cable cars & cog railway: from € 40 (approximate cost)
Meals & beverages: from 50 € per day for half-board in huts

What to Expect

A glacier climb requiring basic mountaineering skills (ice axe, crampons, rope use)
Large altitude gain (over 3,800m of ascent & descent in 3 days)
Pre-acclimatization recommended (previous climbs to 4,000m like Grossglockner or Gran Paradiso)
Extremely variable temperatures (from +30°C in Chamonix to -20°C at the summit)

Historical Significance

First ascent: Jacques Balmat & Michel Paccard (1786)
Considered the “Roof of Europe” and a must-do for mountaineers

Itinerary

Mont Blanc via Gouter Route

Day 1Chamonix

Check-in at a gîte (mountain lodge). Evening briefing and equipment check.

Day 2Chamonix – Aiguille du Midi – Cosmiques Hut

Cable car ride to Aiguille du Midi (3,842m) – an unforgettable experience!
45-minute descent to Cosmiques Hut (3,613m).
Relax and enjoy a stunning sunset at one of the most spectacular mountain huts in the Alps.
230m descent on the first day.

Day 3Summit Day: Cosmiques Hut – Trois Monts Traverse – Mont Blanc – Chamonix

2:00 AM wake-up and early start.
Traverse Mont Blanc du Tacul (4,248m).
Ascent of Mont Maudit (4,465m) – most technical section of the climb.
Final climb to Mont Blanc (4,810m).
Descent via the Gouter Route.
Total elevation gain: 1,200m ascent & 2,500m descent – a very demanding day.

Day 4Chamonix – End of Program

Morning stroll in Chamonix, last chance to enjoy the Alpine capital. End of Program.

Mont Blanc Ascent (4,808 m) – Trois Monts, Goûter & Grand Mulets Routes

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