A guja Guillaumet, on the Fitz Roy range,  is one of the entry climbs in  Patagonia.  Depending on weather and conditions, it´s possible to choose between two mostly rock climbs, the Brenner and Founrouge lines, and a mostly ice and snow one, the Amy route.

Any of the ascent lines involve a real patagonic challenge: a tough camp aproach with heavy loads, glacier travel to get to the climb start, and a long day dealing with all the mountain elements, snow, rock, ice, wind…sounds like fun?


● Climb with a local IFMGA certified mountain guide, bilingual, with tons of experience in this climb.
● Experience the ultimate patagonic challenge, a tough climb that involves almost every climbing skill.
● Ascent a classic peak of Patagonia in an iconic range full of history.
● Enjoy the small climber´s basecamp atmosphere of El Chalten town with its crags, bars, restaurants and wineries.
● Take advantage of the personalized service that makes Andes Mountain Guides the best option in Patagonia.

The Guillaumet Climb

We start our trip in Calafate, your arrival point. The drive to Chalten will give you a first glimpse of the inmense dessertic step landscabe with its guanacos (a lama cousin), choiques (similar to ostrich) and condors. Once we arive to the little town of Chalten, we enjoy a good dinner in town and get ready for the next day.

Before getting to our climb we spend a day climbing in town, one of the great multipitch routes avaliable. this will let us know each other better while reviewing and getting dialed climbing techniques. Also will help us define the most according route option in Guillaumet.

Once we approach to basecamp our adventure begins, getting inside the world of towers of the fantastic Fitz Roy range.

On summit day, we do a real alpine start before getting to the start of our climb. Depending on our route, we´ll be able to climb alpine snow and ice up to 80 degrees on the Amy route or deal with 5.9 to 10.b rock grades on the Brenner or the Founrouge. All of this three options join at some point, where we have to climb easy terrain and a snowy ridge to get to the summit.

At the top of Guillaumet views are incredible: Fitz Roy and Cerro Torre, the continental Ice Cap and the dessert. A really unforgettable moment.

Why come with us?

AMG offers the highests standards on 1:1 guided climbs in Patgonia. Being a small company specialized on custom trips, we keep our Aguja Guillaumet climb with the same spirit, offering a personalized service in every aspect, with the advantage of having an office both in Argentina and in the USA. Our guides are fully IFMGA certified, elite alpinists with extensive experience working  not only in Patagonia but all around the world.


“This past december I had the opportunity to take a solo and rather last-minute trip down to Patagonia. I decided to use the time to focus on climbing and, after speaking with several guiding companies, settled on Andes Mountain Guides. I couldn’t be happier with my decision, and feel lucky to have found these guys.
As it happened, the weather cooperated perfectly. I spent a week with Fede in the north, sport climbing for several days in La Buitrera and then tackling several of the spires at Frey. By the end of the week the weather down south was starting to look promising, so Juampi and I drove down together and during our stay in El Chalten managed to summit Guillaumet on Fitz Roy range twice by two different routes. All in all it was an incredible trip and I learned a ton from Fede and Juampi. They were both great climbers, thoughtful communicators, and great guys to boot. Hope I get the chance to climb with them in the future!”

Peter Koomen, San Francisco, CA