Marmolejo 6.108 masl

Cerro Marmolejo, with a summit rising to 6,108 meters above sea level, is one of the most iconic and challenging mountains in the Central Andes, boasting the title of being the southernmost six-thousander in the world. This volcanic colossus is located on the border between Chile (Metropolitan Region, Cajón del Maipo) and Argentina (Province of Mendoza), and is part of the vast San José volcanic complex, along with nearby peaks such as San José.

The mountain was first climbed in 1928 by Albrecht Maass, Hermann Sattler, and Sebastian Krückel, who ascended via the Nieves Negras route. Its name pays tribute to Alonso de Góngora Marmolejo, the 16th-century Spanish chronicler and historian. Its imposing presence on the border makes it a destination of great symbolic and sporting value for mountaineers across the continent.

From its summit, Marmolejo offers a privileged viewpoint of the Central Andes, with direct views of other giants such as the San José Volcano, Nevado de los Piuquenes, and even more distant peaks such as Tupungato and, on clear days, Aconcagua.

Geologically, Marmolejo is a stratovolcano whose main structure is defined by a large caldera that was created by intense eruptions approximately two million years ago.

The ascent of Marmolejo is considered a tough test for mountaineers. It is not considered a technically difficult summit (it is classified as medium difficulty), but it is physically demanding due to its length, total elevation gain, and route conditions:

Technical Difficulty: Easy.

Physical Difficulty: High. A very good level of physical fitness is recommended for this activity.

Requirements: Health according to activity. In case of illnesses such as asthma, diabetes, or others, you should carry your doctor-prescribed medication with you.

Experience in long-distance trekking carrying a backpack weighing over 15 kilos is necessary, it is also necessary to have been above 4000 meters in altitude.

Responsibilities:

• No actions that jeopardize the safety of the participant or other participants will be carried out.
• Participants in the activity should wear comfortable clothing suitable for the activity. We recommend trekking pants or softshell pants, merino wool socks or similar, two quick-dry long-sleeved shirts, a base layer, and a down jacket with a fill power of 800 or higher.
• Do not consume alcohol or any narcotic drug before or during the activity.
• A medical form and risk acceptance letter must be completed.

Additional:

• This expedition can be completed in 5 days if you are acclimatized.
• Groups of 6 people will be accompanied by 3 mountain guides.
• Each guide carries a first aid kit, rope, harness, ice screws, slings, tubular slings, carabiners, GPS with satellite messaging, and more.
• Possibility of hiring a mountain porter.
• Option to hire only the guide service.
• If you have your own technical equipment, transportation, or all your food, the cost is lower. Contact us for more details.