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Marinelli Couloir Ski Descent

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Canalone Marinelli ski descent (by Martin Volken)


The Monte Rosa massif is big. Everything about it is actually. It’s main summit - the Dufourspitze towers at 4634 meters and its height is surpassed in the Alps only by Mont Blanc. 7 valleys radiate away from its flanks, most of which flow to the south and the east.

The upper Marinelli Couloir with the Italian entrance on the left and the Swiss entrance on the right


The least known of these valleys is the Anzasca Valley which drains out and away from the enormous East Face. The little town of Macugnaga is relatively unknown, considering it is situated at the foot of the biggest single mountain face in the Alps. The East Face tumbles down for over 2500 meters and is most likely one of the few spots in the Alps that reaches Himalayan proportions.

Rinaldo Borra in the ice cliffs below Col Gnifetti


 Macugnaga has been around for over a thousand years and the indigenous people had carved out a meager farming existence for centuries while putting up with famine, floods, avalanches and rule ranging from wealthy Milanese families to the Spaniards.

Below the seracs above the actual entrance to the Canalone


Most importantly the upper Anzasca Valley got resettled by the Valser people from the Saas Valley just to the north of the connecting Monte Moro Pass. Over time Macugnaga turned effectively into a small Swiss/ Walser enclave in Italian territory and remained a hinterland smuggler town for people who did not want to pay the expensive salt tariffs over the much easier Simplon Pass.

In the middle of the couloir


Mountaineering in the loose sense of the word had been happening in the valley for a long time simply by default of the incredibly rugged terrain. But it was Ferdinand Imseng, a guide from the neighboring Saas Valley living in Macugnaga who in 1872 took three Englishmen with another guide and a porter to the top of the Dufourspitze via a huge couloir that drained all the way from summit area to the bottom of the East Face.

The upper portion of the Monte Rosa East Face with the Marinelli Couioir in the center


Regrettably nine years later in 1881 Ferdinand Imseng, fellow guide Battista Pedranzini and client Damiano Marinelli were swept away by the air blast of a large avalanche during another ascent of the wall. This is how the couloir got its name. Only their porter Alessandro Corsi survived because he had gone around a corner in that very instant to get some water for his guides and client. (For an idea of the possible forces that the three unfortunate climbers might have been subjected to, treat yourself to this YouTube Video:

Short efforts to outlaw mountaineering in the area were pointless, so instead the East Face received its own little shelter about half way up the face named after Damiano Marinelli.

Some of the mountaineering elite had taken notice and over time powerful alpinists such as Kurt Diemberger and Hermann Buhl among many others showed up to put up routes on the face.

Just when it seemed that all route pioneering had been done, a young Swiss Guide named Sylvain Saudan showed up to make ski mountaineering history.

The fact that he skied the face is remarkable, but the entire first descent story is outrageous.


On June 10th 1969 after several attempts spoiled by schedules, weather or conditions, Sylvain and his partners Gilles Bodin, Michel Trottin and Cardix decided to approach the Silbersattel, which is the entrance to the couloir with a small Pilatus plane. Due to the small size of the plane they had to get shuttled from the Zermatt ski area to a small plateau a few hundred meters below the Silbersattel one person at a time. The pilot took off with Silvain and tried to land on the little plateau, but the pontoons broke through a thin crust layer and the plane augured deep into the snow. Miraculously the propeller of the plane did not get damaged and after several hours of digging the pilot attempted a take off while Sylvain was literally hanging off the tail rudder in order to keep the plane from tipping forward until the plane was airborne. The pilot had made it clear that he would not attempt another landing with one slightly damaged pontoon and so Sylvain was left high on Monte Rosa with nothing but his skis and his poles. His partners had intended to bring the radio, ropes, crampons etc. on the next flight.

Sylvain’s mind was made up.

He worked up the final slopes of the Monte Rosa Glacier to the couloir entrance, literally dug his way through a cornice and started his descent with nothing other than – well his skis and poles. It was the middle of the afternoon now and the massive East Face was releasing avalanches constantly. Sylvain got spared and he completed the first ski descent of the Marinelli Couloir.

Without a doubt, more technical lines than the Marinelli Couloir are around, but the fantastic purity of the line and the scale of the place make it a hard super classic.

There is backcountry skiing and ski mountaineering, side country skiing and steep skiing and big mountain skiing. I am not sure that if I have ever been to a place that blurs all those lines as much as a ski descent of the Marinelli does.

My friend and fellow guide Rinaldo Borra and myself were having a little “mancation” and decided to go check out this famous line in order to judge the feasibility of guiding it the following week. So many things need to fall into place for a successful descent such as weather, snow stability, helicopter availability and temperature. All seemed to be lining up and on the 20th of April we found sitting in a helicopter that labored its way up over 11000 feet of vertical over the Belvedere Glacier and up the East Face. The flight must have lasted less than 5 minutes and before we knew it were standing at 4500 meters (nearly 15000 feet) at the Col Gnifetti together with a French and Italian Guide and their respective clients.

The first turns though not really that difficult were hair raising. The 40 degree wind packed and sun backed slope above the first serac zone did not really allow gentle warm up turns. This was followed by a V-thread anchored rappel over the actual ice cliff which lead to the proper “Canalone” at around 4300 meters. Once in the couloir the pitch of it remained at about 45 degrees for over 1000 meters before disappearing into a rapidly building cloud bank. I am happy to admit that I was happy for every turn I had ever made before on steep bony terrain. One might be able to recover from a fall in softer conditions, but you would most likely be dealing with very hard to judge snow stability issues. There are 3000 foot tributary couloirs that are feeding into the main couloir and less than solid snow stability can turn deadly here quite quickly as the “guides cemetery” in Macugnaga proves clearly.


At around 3000 meters we finally passed the little Marinelli shelter and left the couloir for the equally steep but objectively safer “Crestone Marinelli”.

Marinelli Shelter

A short squeeze under the dangerous ice cliff of the Nordend Glacier brought us to the lower reaches of the Belvedere Glacier and an awesome Espresso machine in Macugnaga.

Exit under the Nordend Glacier

Was it the steepest descent I ever made in my life? Probably not, but they were some of the most committing turns in certainly the wildest arena I have ever made. One thing was confirmed to us. Sylvain Soudan was one bad agent. He truly is “the skier of the extreme”.

Church of Macugnaga



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