Join Mountain Expeditions and climb Aconcagua, at 6962m it's the highest mountain in South America!


Aconcagua at 6,962m is the highest mountain outside of the Himalaya and the second highest of the world famous 7 summits! Aconcagua is a wild & exciting place; vast open valleys carved by glaciers, towering rocky spires and incredible cloud formations formed by storms passing through the Andes all make it so. Getting to the summit is never easy but the effort and journey is always rewarded with an indescribable sense of achievement.

  • Entirely planned & organised by Mountain Expeditions
  • Lead by highly experienced UK Expedition Leaders 
  • Smaller teams & higher guide ratios
  • A flexible itinerary with a built in 3 day weather window
  • The best local logistics available to support the expedition
  • 100% summit success 2008, 2018, 2020

Mountain Expeditions offer professional and personable Open Expeditions allowing you to join a group of like-minded team members. We strive to create a welcoming team atmosphere and an environment where everyone can achieve their aims. We also offer the option of leading Private Expedition groups.


“Aconcagua was such an incredible mountain expedition! Argentina, great steak (the wine!) & of course the Andes mountains – this place is perfection!” Steve Plain

Expedition Facts

  • Duration:

    21 days
  • Activity:

    High Altitude
  • Accommodation:

    Hotel & Tents
  • Kit List:

  • Difficulty Level:

    C1 (Explain this)
  • Overview
  • Trip Suitability
  • Itinerary
  • Map
  • Included
  • Not Included
  • Difficulty Level
  • In-country Safety
  • FAQs


Aconcagua at 6,962m is the highest mountain in both the western and southern hemispheres. It is also the second highest of the world famous 7 summits!

Situated in Argentina, close to the border with Chile on the spine of the mighty Andes we start our expedition in the bustling city of Mendoza. Once we’ve obtained our permits we head out into the mountains and begin our approach from the south, following the valley of Rio Horones to Aconcagua. This beautiful relaxed trek circles the western flank of the mountain and after a few days we arrive at the Plaza de Mulas base camp (4,365m). From here we gradually gain height and acclimatise well, over a number of rotations before preparing ourselves to make an attempt at the summit!


Organised and lead by Mountain Expeditions

Mountain Expeditions are expedition specialists – simply put we love organising and delivering world class expeditions. We understand that joining any of our expeditions is a big deal, so we try and make sure everything is perfect from start to finish.


UK Expedition Leader

Mountain Expeditions employ a small number of the UK’s most experienced High Altitude Expedition Leaders and we will always send a UK Expedition Leader to facilitate your expedition. All of our leaders are chosen on their individual merits which we base on their mix of vast mountain experience, interpersonal skills and of course, qualifications.


Local Mountain Guides

With all our expeditions we partner with the very best local in-country agencies who shares our ethos of delivering outstanding expeditions. We believe that a combined leadership team built of a UK Expedition Leader and highly experienced local guides is the strongest and most successful way to deliver our expeditions. For Aconcagua, a local guide will be with the team throughout the entire expedition and, if ratio’s require them, additional local guides will be used during the summit rotation.


Fully supported by local cooks, porters & guides

The truth behind organising and leading worldwide expeditions is that you need an excellent local in-country agent to work with. Over the years Mountain Expeditions have developed a long standing relationship with our local crews and the added value of our friendly and efficient local staff never goes unnoticed – we know it makes a big difference to your experience. Our local team are a huge part of your experience and make all the difference on the mountain.


Small teams & a personal approach – maximum 8

On big mountains like Aconcagua we don’t believe leading Open Expedition teams of 10+ members is good practice and it certainly doesn’t offer a very personable experience! All our Open Expedition teams are capped at 8 resulting in a close knit, small team experience.


Very high summit success rate

We believe that our high summit success rate is down to a combination of smaller teams and using the most experienced High Altitude Expedition Leaders. This combination has shown time and time again that this is the safest approach whilst on the mountain.


21 day flexible itinerary with a 3 day summit window

Our itinerary has been chosen to make this trip the very best we believe it can be. We’ve built in plenty of rest days and climb high sleep low days to aid your acclimatisation, and of course there are some big days too! We have also built in a 3 day weather window to allow plenty of time to reach the summit.


A perfect non-technical high altitude peak

There are many reasons people climb big mountains and many reasons why you might choose to climb Aconcagua. Due to its low technicality, Aconcagua offers a realistic opportunity to summit a really big mountain without having years of experience. Please read our Trip Suitability section to find out more.


Accommodation: hotels & tents

Many of our expeditions start and finish in a bustling city in a really nice hotel or lodge. Maybe it’s first and last impressions that count or perhaps we just enjoy having nice accommodation when starting and finishing a trip but it’s what we do! On the mountain we make sure camp life is as comfortable as we can.

Pricing, Dates & Availability

Live Trip Status: When our trips are ‘Available‘ it means they are live & taking bookings. Once we’ve met the minimum numbers to confirm the trip, the status changes to ‘Confirmed‘ which is your green light to go ahead & book your flights & insurance. Once all the places are booked the trip will show as ‘Full‘.

Plan Your Own



Do you already have a team for Aconcagua & want to choose specific dates that work for you?
Simply click on the ‘Plan your own’ button (just below) and fill in the Contact Us fields
We’ll call/email you to discuss the trip and the details
We’ll then create a unique Aconcagua URL just for your group and send you the link so you can all book on together!



Are you dreaming of a little more luxury on the mountain, private 1:1 guiding perhaps? Or do you simply want a unique experience or to put a special twist on it? Whether it’s a different route, you want to use helicopters, take along a TV crew or adventure photographer, let us know and we can bring together the very best people in the world for your once-in-lifetime expedition.



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