
Where is Agua Negra Pass?
Argentina, south-america
318 km
4,774 m
moderate
Year-round
Paso de Agua Negra (Black Water Pass) is an international high mountain pass at an elevation of 4.774m (15,662ft) above sea level, located on the border of Argentina and Chile. It's
one of the highest roads in the country
Where is Agua Negra Pass?
Set high in the Andes mountain range, the pass links the IV Region of Coquimbo (Chile) with the Province of San Juan (Argentina). It is the highest border crossing between Argentina and Chile, and the traffic is very low, with around 200 vehicles using it every year.
Can you drive to Agua Negra Pass?
Located in the central region of both countries,
the road to the summit is mostly unpaved. It’s called Ruta 41 (in Chile) and Ruta Nacional 150 (in Argentina). The pass is 318km (198 miles) long, running east-west from Las Flores (in San Juan Province of Argentina) to La Serena (the capital of the Coquimbo region on Chile’s coast).
The pass is driveable with any kind of vehicle. Opened in 1965, the pass was closed in 1977 due to political problems between the two countries and reopened to the public in 1994.
Is the Agua Negra pass open?
Because of its altitude, this pass is open only in summers (from December through April).
The rest of the year is blocked by snow. Remember to check before you drive, as the dates are dependent on snow conditions each year.
What’s Agua Negra tunnel?
A new tunnel (Agua Negra tunnel) is planned to bypass the mountain pass, allowing year-round traffic. The project consists of two parallel 13.9km (8.63 miles) tunnels, each comprised of two traffic lanes. The tunnels will have a maximum width of 11m, but because they run through high mountains, the maximum incline has been limited to 4%. The tunnel is expected to greatly improve economic connections between Chile, Argentina, Brazil, and Paraguay.
Pic: Marisa Matesevach
Route 5 is Chile's longest route
Ojos del Salado is one of the highest accessible points by car on Earth
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
- Argentina
- Continent
- south-america
- Length
- 318 km
- Max Elevation
- 4,774 m
- Difficulty
- moderate
Related Roads in south-america
extremeIs the road to Cerro Azufrera de los Cuyanos the ultimate high-altitude test in Chile?
🇨🇱 Chile
Calling all adventurers! Deep in Chile's Atacama Region, near the Argentinian border, lies Cerro Azufrera de los Cuyanos, a massive volcano hiding one of the country's highest roads. We're talking a lung-busting 5,553m (18,218ft) above sea level! This isn't your Sunday drive; this extreme mine road is strictly for seasoned off-roaders and their beastly vehicles. Starting from Ruta C-173, this 47.1 km trek punches upwards, gaining a staggering 2,060 meters in elevation. Located south of Cerro Piedra Parada, the road relentlessly climbs through the stark Atacama landscapes, culminating in a zone of scarce oxygen and brutal conditions. Expect a rocky, gravel-strewn surface that will test your mettle. Nearing the summit, brace yourself for 13 tight hairpin turns demanding expert maneuvering. Large, sharp volcanic rocks litter the path, posing a serious threat to your tires. Leave your stock vehicle at home; high clearance, skid plates, and differential lockers are non-negotiable. The altitude is the ultimate challenge. Above 5,500 meters, the thin air can trigger respiratory problems or exacerbate heart issues. Be prepared for bone-chilling temperatures and relentless winds. The weather is notoriously unpredictable, with sudden snowstorms possible even in summer. This primitive road, a relic of its mining past, sees little to no maintenance. Given its extreme isolation and exposure, self-sufficiency is key. Pack extra fuel, oxygen, and cold-weather gear. Remember, you're on your own out here in this remote corner of the Atacama – no services or rescue teams to rely on.
hardWhere is San Francisco Pass?
🇦🇷 Argentina
Okay, adventure junkies, buckle up for the Paso de San Francisco! This high-altitude gem straddles the border between Argentina and Chile, clocking in at a breathtaking 4,760m (15,616ft). We're talking serious altitude here! Nestled deep in the Andes, it connects Argentina's Catamarca province with Chile's Atacama Region, winding through a landscape of towering volcanoes, jagged peaks, shimmering salt flats, and serene lagoons. The Argentinian side (Route N 60) is a fully paved 201 km (125 miles) run from Fiambala, a winding climb that'll test your driving skills. Over in Chile, Route CH-31 offers a smooth 280 km (174 miles) paved journey from Copiapó, taking you past the stunning Maricunga salt flat in Nevado Tres Cruces National Park and the otherworldly Laguna Verde. Keep your eyes peeled – the scenery is absolutely epic!
moderateThe Moto Igualada – Aconcagua – Amazon Expedition
🇦🇷 Argentina
Okay, picture this: you're in Argentina, Mendoza Province to be exact, staring up at Aconcagua. This beast of a mountain boasts a peak at a whopping 6,961 meters (that's 22,838 feet!). Seriously, this is South American high country at its finest, snaking through the majestic Andes. Back in '77, some crazy-talented Spanish riders took on the challenge. They rode their Bultaco Sherpa T 183 motorcycles up this monster, reaching a record-breaking altitude for motorcycling. These guys were from the Moto Club Igualada and seriously knew their stuff. They conquered a staggering 6,800 meters on modified Sherpa T 350 cc motorcycles, smashing the previous record set on Kilimanjaro a few years prior. These bikes, the Bultaco Sherpa T, were legends in their own right, holding their own against other top Catalan motorcycles and gaining international recognition. Just imagine the views, the air getting thinner with every meter, and the sheer thrill of the ride! Definitely one for the bucket list if you're a thrill-seeking traveler.
hardIs Paso de los Libertadores paved?
🇨🇱 Chile
Straddling the border between Chile and Argentina, high in the Andes, is Paso Internacional Los Libertadores – a truly unforgettable drive. This fully paved route, known as Ruta 60 (Chile) and Ruta Nacional 7 (Argentina), winds its way to the Cristo Redentor tunnel, a 3km passage drilled right through the mountains at over 3,100 meters. The border crossing sits below the iconic Christ the Redeemer statue, perched even higher at nearly 4,000 meters! This pass is the main artery connecting Santiago, Chile, with Argentina's Mendoza region. Be warned: winter snows often shut the pass down due to heavy snowfall and potential rockfalls. Even when open, patience and skill are essential. The Argentinian side offers a relatively gentle climb through stunning mountain landscapes, but the Chilean side? Buckle up! Ruta 60 is a wild ride of hairpin turns, clinging to the mountainside. The section known as "Los Caracoles" (the snails) is a series of steep, tight switchbacks, so perfectly formed they resemble a refrigerator coil from above. Heavy truck traffic can create bottlenecks, adding to the challenge. But persevere, and you'll be rewarded with breathtaking views of the snaking road below and, if the weather is clear, Aconcagua, the highest peak in South America. Despite the challenging conditions, the pass has a decent safety record, but caution is always necessary. Snow and ice are common, and guardrails are absent in many places. Yet, year-round, you'll find cargo trucks and even double-decker buses braving the route.