Illampu
Mountain High Andes peak in the Cordillera Real range
A glaciated peak in Bolivia’s Cordillera Real rising to about 6,368 metres, Illampu attracts technical mountaineers and high‑altitude trekkers. Expeditions approach from Sorata and combine glacier travel with multi-day camp logistics and acclimatisation.
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Illampu is a high peak of the Cordillera Real in Bolivia with an elevation of about 6,368 metres, making it one of the range’s principal summits. It is a heavily glaciated mountain known for steep faces and sustained alpine routes.
Mountaineers come for technically demanding climbs on steep mixed ice and rock routes and for glaciated ridges that require roped glacier travel. The mountain is noted for long approaches from base valleys and for panoramic views of nearby peaks in the Cordillera Real.
Illampu is part of the Andean Cordillera Real massif and has been a focus of alpine exploration since the early 20th century; it remains an important objective in Bolivian high-mountain climbing. No political or built history applies beyond its geological formation and climbing history.
Illampu lies in the La Paz Department of Bolivia, within the Cordillera Real. The town of Sorata serves as the common approach and staging point for expeditions into the massif.
- Climbing difficulty: Climbs are technical and glaciated; parties should be prepared for steep ice and rock routes and bring appropriate equipment and experience.
- Climbing season: Best climbing season is during the Andean dry months, generally the austral winter and spring (roughly May to September), when weather is more stable.
How to Get to Illampu #
Travel from La Paz to Sorata by bus or private transfer - roughly a 3-4 hour journey (road conditions vary). Sorata is the usual base; approaches and hireable guides are arranged there. The standard forestry/bridge approach follows trails north of Sorata into the Cordillera Real.
Tips for Visiting Illampu #
- Base from Sorata (2,650 m) - acclimatize there for at least two days before attempting any high routes.
- Hire local Aymara or mestizo mountain guides from Sorata; they know the crevasse patterns and seasonal water sources.
- Best approach and porters change after heavy rains - check with guides in Sorata for the current approach via the southern ice slopes.
Best Time to Visit Illampu #
The best time for expeditions on Illampu is the Bolivian dry season (May-September), when the Andes hold clearer weather and fewer storms.
Weather & Climate near Illampu #
Illampu's climate is classified as Ice Cap - Ice Cap climate with consistently warm temperatures year-round. Temperatures range from -12°C to 8°C. Moderate rainfall (881 mm/year) with a pronounced dry season.
January
January is cold with highs of 6°C and lows of -4°C. The wettest month with heavy rain (163 mm).
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February
February is cold with highs of 5°C and lows of -4°C. Significant rainfall (148 mm).
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March
March is cold with highs of 6°C and lows of -4°C. Significant rainfall (132 mm).
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April
April is cold with highs of 7°C and lows of -7°C. Moderate rainfall (49 mm).
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May
May is freezing with highs of 7°C and lows of -9°C. Light rainfall.
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June
June is freezing with highs of 6°C and lows of -12°C. The driest month with just 12 mm.
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July
July is the coldest month with highs of 6°C and lows of -12°C. Light rainfall.
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August
August is freezing with highs of 7°C and lows of -11°C. Light rainfall.
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September
September is freezing with highs of 7°C and lows of -8°C. Moderate rainfall (43 mm).
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October
October is cold with highs of 8°C and lows of -7°C. Moderate rainfall (53 mm).
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November
November is cold with highs of 8°C and lows of -6°C. Regular rainfall (85 mm).
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December
December is cold with highs of 6°C and lows of -5°C. Significant rainfall (139 mm).
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