🇧🇴 Bolivia · Altiplano and the Andean west
There's a mountain that watches over La Paz from the horizon and that has become inseparable from the city's identity: Nevado Illimani. With its 6,438 meters and its silhouette of several ice-crowned summits, this majestic mass of the Cordillera Real is the first thing many paceños look at when they wake up and the last thing they see as the afternoon fades, when the sun tints its snows pink and gold. It is, quite simply, the natural symbol of La Paz.
Illimani is the second-highest mountain in Bolivia, after Sajama, and the roof of the Cordillera Real, that snow-capped range that separates the altiplano from the valleys and the Amazon. For the Aymara it's a sacred mountain, a protective 'Apu'; for mountaineers the world over, one of the great objectives of the Bolivian Andes, a demanding climb of ice and altitude but within reach of alpinists with experience. And for everyone, an imposing presence that defines the La Paz landscape.
This guide covers Illimani with a practical eye: how to admire it from La Paz, what going for its summit involves, what the approach and the climb are like, what preparation and acclimatization you need, and how to organize the expedition with guides and agencies. It's a destination for mountain lovers and for any traveler who wants to understand why paceños feel Illimani is almost part of their city.
Nevado Illimani is the highest summit of the Cordillera Real and the second in Bolivia, at some 6,438 meters on its south summit (the main one). Its name, of Aymara root, is usually interpreted in relation to water or radiance ('the shining one', 'golden water' or other readings), though there's no single etymology. For the Aymara peoples of the altiplano, Illimani is a sacred mountain, an 'Achachila' or 'Apu', a protective deity and tutelary ancestor to which worship and offerings are made, and one deeply tied to the identity of the region and of the city of La Paz, founded in 1548 at its feet. The mountain appears on the coat of arms of La Paz and is an omnipresent symbol in the city's culture. On the mountaineering side, the first documented ascent of Illimani's main summit is attributed to the celebrated British alpinist Sir Martin Conway, together with Alpine guides, in 1898, on one of the first great expeditions to the Bolivian Andes. Since then, Illimani has established itself as one of the great objectives of Andean climbing in Bolivia. The mountain has also been the scene of tragedies: air crashes occurred on its slopes over the course of the 20th century, given its height and its proximity to the flight routes of La Paz. Today Illimani combines its character as a sacred mountain for the Aymara, as a symbol of La Paz and as a coveted goal of international mountaineering, drawing alpinists from all over the world every dry season. The full story is on our history page.
Read the full history ↓The altiplano department and the seat of government: cradle of Tiwanaku and of Murillo's revolution, Aymara land beside Lake Titicaca, dominated by the Cordillera Real and its snowcapped Illimani, with the highest seat of government in the world and an Amazonian flank that drops all the way down to the Madidi.
Read the history of La Paz →No exact prices: a scale from $ (budget) to $$$$$ (luxury), with 2-3 options per category.
Origins, formation and what the sources say.
Any ordinary morning in La Paz: the sun isn't beating down yet, the city starts to stir in the hollow where it has lived packed in for almost five centuries, and there it is, always there, the mass of ice crowning the eastern horizon. You don't have to go looking for it: Illimani imposes itself, as if watching over every movement of the highest capital in the world. With its 6,438 meters at the main summit, it's one of those mountains you don't forget once you've seen it up close, and one that explains, better than any history book, why La Paz is the city it is.
Nevado Illimani is the highest summit of the Cordillera Real, the spectacular chain of snowy mountains that extends north and east of La Paz, separating the altiplano from the Yungas valleys and the Amazon. At an altitude of some 6,438 meters at its main summit (the south summit), Illimani is the second-highest mountain in Bolivia, surpassed only by Nevado Sajama, in the department of Oruro. Its name alone, spoken by any paceño, immediately evokes the white silhouette cut against the altiplano sky.
Unlike Sajama, a solitary volcano isolated in the middle of the puna, Illimani is part of a massif of several aligned, glacier-crowned summits —Pico Sur, Pico Norte, Pico Central and Pico Layca Khollu are some of the names its peaks receive—, an imposing ensemble that rises directly above the basin of La Paz. That proximity to the city —which lies at its feet, at some 3,600 meters of altitude— makes Illimani a constant, dominant visual presence, and has forged its unique bond with the capital: there's no lookout, terrace, office window or schoolyard in the east and south of La Paz from which you can't see it.
Geologically, the Cordillera Real is a range of tectonic (not volcanic) origin, formed by the uplift of the Andes over millions of years, with ancient rock —schists, granites— shaped by glacial action over the ages. Illimani's glaciers, like those of the whole range, are also an important water source for the region: they feed the ravines and rivers that descend toward La Paz and El Alto, cities that depend to a large degree on Andean meltwater for their supply. However, as happens throughout the tropical Andes, these glaciers have been retreating noticeably because of climate change, a phenomenon that worries scientists and communities alike, and one already visible to the naked eye when comparing photographs of the mountain from different decades.
Long before the city of La Paz existed, the Aymara peoples of the altiplano venerated Illimani as a sacred mountain. In the Andean worldview, the great mountains are 'Achachilas' or 'Apus': protective spirits, ancestors and tutelary deities that look after communities, regulate the waters and the weather and receive offerings and respect. Illimani, for its height and its visual command over the whole region, holds a central place in that sacred geography, and it is still an object of devotion today: it's not unusual to find ritual mesas, coca and other offerings made to the mountain on key dates of the Aymara calendar, especially in August, the month dedicated to Pachamama and the Achachilas across much of the Bolivian altiplano.
The name 'Illimani' itself is of Aymara root, and its exact meaning is debated among linguists and chroniclers. Several interpretations relate it to water, radiance or golden light (readings such as 'the shining one', 'golden eagle' or 'golden water' circulate in different sources and oral traditions), in keeping with the image of its snows gleaming in the altiplano sun in the first hours of the day, though there's no single etymology accepted by all specialists. That very ambiguity, far from weakening the name, feeds the almost mythical aura surrounding the mountain.
When the Spanish founded Nuestra Señora de La Paz on October 20, 1548, led by captain Alonso de Mendoza, they did so in a sheltered basin at the feet of Illimani, taking advantage of the obligatory pass between the altiplano and the Yungas. From then on, the mountain was inseparably tied to the city's identity. Illimani appears on the coat of arms of La Paz and is a recurring motif in its culture, its art, its music (Bolivian composers and folk groups have dedicated songs to it) and its collective imagination. For paceños, seeing Illimani every day, watching the sunset tint its snows pink and orange, is part of what living in their city means: the sacred mountain of the ancients also became the great symbol of the modern city, present in institutional logos, murals, postcards and in the everyday pride of any paceño who points it out to visitors as if introducing one more member of the family.
International mountaineering's interest in Illimani arrived at the end of the 19th century, in the great era of alpine exploration of the world's ranges, when European expeditions were combing South America, Africa and Asia in search of the planet's last great virgin summits. The first documented ascent of Illimani's main summit is attributed to the celebrated British alpinist and explorer Sir William Martin Conway, who in September 1898 led an expedition to the mountain accompanied by Swiss Alpine guides, among them Antoine Maquignaz. It was one of the first major incursions of European alpinism into the Bolivian Andes, at a time when simply getting to La Paz was itself an expedition of weeks.
Conway was a leading figure of the mountaineering of his day: he had explored the Alps, the Karakoram (where a summit is named in his honor, Conway Peak) and other remote ranges before setting course for Bolivia, and his climb of Illimani was part of a larger tour of the Bolivian Andes that also included attempts and ascents on other summits in the region. His feat, achieved with the rudimentary gear of the period —without the technical clothing, the modern crampons or the detailed maps alpinists have today—, reflects both the real difficulty of the mountain and the exploring spirit of those years, when every documented ascent became a milestone for the geographical societies of Europe.
Since then, Illimani has established itself as one of the great objectives of Andean climbing in Bolivia, alongside Sajama, Huayna Potosí and other summits of the Cordillera Real such as Ancohuma or Illampu. Over the course of the 20th century, successive expeditions opened new routes on different faces of the mountain, documenting more technical variants alongside the so-called 'normal route', the one most traveled today by La Paz agencies. To this day, alpinists from all over the world come to the city drawn by the chance to climb this emblematic 6,000-meter peak, whose closeness to the airport and to urban services, combined with its real technical demands, makes it a much-coveted goal —and a relatively accessible one in logistical terms— within Andean mountaineering. It's no accident that many international high-mountain guides list Illimani, alongside Huayna Potosí, among the 'entry-level' 6,000-meter peaks for those looking for their first experience above 6,000 meters.
Like so many great mountains, Illimani also has a tragic side to its history. Its great height, its closeness to La Paz and its position beneath flight routes made it, over the course of the 20th century, the scene of air crashes. The most remembered is that of Eastern Air Lines Flight 980, a Boeing 727 flying the Asunción–La Paz–Miami route, which in the early hours of January 1, 1985 crashed into the slopes of Illimani, with all 29 people aboard killed. It was a tragedy that shook Bolivia and international aviation, and one which, because of the difficulty of reaching the wreckage in the middle of the high mountains —above 6,000 meters, among crevasses and ice—, surrounded the crash with an especially grim and mysterious air: investigators took weeks to organize expeditions to reach the site, and it wasn't until many years later that the black boxes were recovered, in a mountaineering operation as complex as the crash investigation itself.
These episodes, added to the risks inherent to mountaineering on its glaciers —where every season brings accidents involving alpinists falling into crevasses, avalanches or altitude sickness—, have fed the respect, and sometimes the fear, that the mountain inspires in paceños and visitors alike. For Aymara communities, the accidents and misfortunes that occur on the mountain are often read in terms of the relationship with the Apu, the tutelary spirit, reinforcing the idea that Illimani demands respect, offerings and caution from those who dare to climb its slopes, a reading many local mountain guides still pass on to their foreign clients before each expedition.
Illimani is, then, a mountain loaded with layers of meaning accumulated over centuries: the protective deity of the Aymara long before the Spanish arrived, the landmark that determined where Bolivia's seat of government would be founded, the beloved symbol that appears on the coat of arms of La Paz, the challenge coveted by alpinists since Conway's day and the scene of air tragedies that wrap it in legend and mystery. Its image, omnipresent on the La Paz horizon from any neighborhood in the city, condenses all of that at once: the overwhelming beauty of the high Andes and the mix of admiration, devotion and respect it stirs in those who look at it every day, whether from an office downtown, a market in El Alto or the window of a cable car. Today, as the glaciers retreat because of climate change and the city climbs ever higher up its slopes, Illimani remains, as it has for centuries, the snowy guardian of La Paz: the mountain that saw the city born and that, in all likelihood, will go on presiding over its horizon long after today's generations have passed. History, like the ice that piles up season after season on its slopes, keeps being written layer by layer in its snows.