
When was the road to Cerro Aucanquilcha built?
Chile, south-america
22 km
5,500 m
hard
Year-round
Cerro Aucanquilcha is a massive stratovolcano located in the Antofagasta Region of Chile. An old mine road used to run to the top, but now much of it about 5.500m (18,044ft) above sea level has been wiped out by landslides. For many years it
was the highest drivable road in the world
When was the road to Cerro Aucanquilcha built?
Set high in the northern part of the country, part of the Central Volcanic Zone of the Andes,
the road to the summit is totally unpaved, but no longer usable by vehicles. Mining originally began on the volcano in 1913,
initially using llamas as pack animals to carry down the sulfur. An aerial cable system extending for 22 km (14 mi) was completed in 1935, to lower the sulfur in buckets.
Eventually this was replaced in 1972 by the road which switchbacked up to the summit and was capable of supporting 20-ton mining trucks.
It was the world's highest mine during that period. It’s
one of the highest roads of South America
Can you drive to the summit of Cerro Aucanquilcha?
Located to the west of the border with Bolivia, within the Alto Loa National Reserve
one of the highest roads of Chile
This is an extremely tough road to try and climb up on a bike. The terrible surface and steep gradients meant that with loaded bikes you will have to push about 80% of the way from 4,000m to a high point at 5,130m.
Although a number of people have taken their bikes to the summit, the surface on many stretches of the road is very bad or even blocked due to landslides. However, there are sections of rideable road all the way to the summit.
At the summit itself it would also be possible to ride around a bit. Since the mine closed in 1993 much of the road has fallen into disrepair. Motorized use is no longer possible.
How is the climb to Cerro Aucanquilcha?
The existence of the old road makes it relatively easy to get to the summit on foot if you are well acclimatized and the old mining camp at 5,280m makes a good base camp as there are walls to shelter your tent.
The winds in this area can be fierce and especially in winter the nights can be extremely cold. The highest permanent human habitation was a galvanized iron hut acting as a miners' barracks, with 4 workers, at about 5,500 m (18,000 ft).
Pic: Diego Delso [CC BY-SA 4.0 (
https://creativecommons.org/licenses/by-sa/4.0
)], via Wikimedia Commons
Conquering the scenic Y290 road in the Chilean Patagonia
A dangerous and difficult road to Guallatiri Volcano
Embark on a journey like never before! Navigate through our
to discover the most spectacular roads of the world
Drive Us to Your Road!
With over 13,000 roads cataloged, we're always on the lookout for unique routes. Know of a road that deserves to be featured? Click
to share your suggestion, and we may add it to dangerousroads.org.
Road Details
- Country
- Chile
- Continent
- south-america
- Length
- 22 km
- Max Elevation
- 5,500 m
- Difficulty
- hard
Related Roads in south-america
moderateAlto de Letras is the longest road climb in the world
🇨🇴 Colombia
Get ready for Alto de Letras, one of the most legendary and grueling climbs in Colombia! Situated high in the Andes, straddling the Tolima and Caldas departments, this road is a must-do for any adventurous traveler. Nicknamed "Letras", this fully paved road, part of Ruta Nacional 50, links Manizales and San Sebastián de Mariquita, offering an epic journey for those brave enough to take it on. Prepare to be amazed as the landscape transforms around you. The changing scenery, climate, crops, and even animals create a truly unique experience. Keep your camera ready for the beautiful, ever-evolving views. Heads up, though: this route can get busy, so an early start is a good idea. Starting from San Sebastián de Mariquita, you'll be tackling a staggering 78.9 km (49 miles) with an elevation gain of 3,220 meters. The average gradient is around 4%, but don't let that fool you – you'll hit some steep sections of 11% or 12% in places! Often called the longest road climb in the world, Alto de Letras is a favorite among cyclists, both amateur and pro, and has been a part of the Vuelta a Colombia for years. Starting in the subtropical heat of San Sebastián de Mariquita at 468 meters and climbing all the way up to an arctic 3,692 meters, this is one South American adventure you won't soon forget!
moderatePunta Olimpica is the highest tunnel in the Americas
🇵🇪 Peru
Hey adventure seekers! Get ready to experience the incredible Punta Olimpica Tunnel in the Ancash region of Peru. Nestled high in the Cordillera Blanca mountains, this beauty connects the Callejón de Huaylas and Conchucos valleys. We're talking serious altitude here – 4,735m (15,535ft) above sea level! This fully paved tunnel is part of Ruta AN-107 and stretches for 1,384 meters. It's usually open year-round, but keep an eye out for occasional snow closures. Fun fact: it's named after Peru's epic football win against Austria at the 1936 Berlin Olympics! Built under crazy tough conditions, the tunnel opened in 2013 and totally changed the game. It bypassed the old Punta Olimpica Road (now a bit worse for wear with boulders and subsidence, so be careful!) and slashed travel time from a whopping 9 hours to just 2.5 hours for the 80 km distance. For years, it was the highest tunnel in the world! So, if you're up for breathtaking views and a serious adrenaline rush, add this to your bucket list!
extremeWhere is Altos Corvo Branco?
🇧🇷 Brazil
Alright, adventure seekers, listen up! Deep in the heart of Santa Catarina, Brazil, snuggled within the Serra do Corvo Blanco (White Crow's Mountain) range, you'll find Altos Corvo Branco, a mountain pass that'll take your breath away – literally and figuratively! We're talking about an elevation of 1,245m (4,084ft), so expect some serious views. This epic road, known as SC-370 (Estrada da Serra do Corvo Branco), stretches for 67km (41 miles) from Braço do Norte to Urubici, acting as a vital link between southern Santa Catarina and the Planalto Catarinense. Now, don't go thinking this is a leisurely cruise. This drive is challenging! The final 1.6km is a beast, boasting sections with a 30% gradient and five hairpin turns that'll test your driving skills. Think tight curves, narrow stretches, steep drops, and cliffs that plunge dramatically. Trust me, the panoramic views are worth it, but be warned: low gears are your friend here. And if you're tackling this in rain or fog? Maybe reconsider. Definitely not bus or big-rig friendly. Get ready for an unforgettable ride, with viewpoints practically around every bend!
hardWhat are the highest roads in Argentina?
🇦🇷 Argentina
Argentina, the land of tango and stunning landscapes, also boasts some seriously high-altitude roads! We're talking about routes snaking through the Andes Mountains in western Argentina, a range that stretches for over 4,000 kilometers. Forget flat plains – we're climbing to some of the highest navigable roads on Earth, often over 4,700 meters (15,400 ft)! These aren’t your average paved highways, though. Expect rugged, unpaved tracks originally carved out for mining or to connect with Chile. So, get ready for a wild ride across challenging mountain passes, rewarded with views that’ll take your breath away (literally, the air is thin up there!). Prepare for an adventure on some of Argentina’s most demanding – and highest – roads!