A Grueling Unpaved Road to the Summit of Colla d’Onzo
Italy, europe
7.9 km
843 m
extreme
Year-round
# Colla d'Onzo: A Thrilling Mountain Challenge
Ready for one of Italy's most intense driving experiences? The Colla d'Onzo mountain pass sits at 843m (2,765ft) in Liguria's Province of Savona—and it absolutely lives up to its reputation as a seriously demanding ride.
This 7.9 km (4.90 miles) stretch connecting Nasino to Capitolo-Costa runs straight up the mountainside with a relentless 10.24% average gradient. But here's the kicker: some sections kick up to a brutal 20%, making this pass no joke for unprepared drivers.
What makes it truly gnarly? The road is absurdly narrow—two medium-sized cars literally can't pass each other. You'd better be comfortable with tight reversing maneuvers, because you'll likely need them. Throw in mixed paved and unpaved sections, and conditions that get sketchy after rain, and you've got yourself a serious challenge.
Low-clearance vehicles? Skip this one entirely. The steep, winding terrain demands respect and solid driving skills. But if you're up for it, you'll experience one of northern Italy's most spectacular and unforgiving alpine routes—the kind of drive that gets your heart pumping and leaves you with an unforgettable story.
Where is it?
A Grueling Unpaved Road to the Summit of Colla d’Onzo is located in Italy (europe). Coordinates: 41.5212, 10.6083
Road Details
- Country
- Italy
- Continent
- europe
- Length
- 7.9 km
- Max Elevation
- 843 m
- Difficulty
- extreme
- Coordinates
- 41.5212, 10.6083
Related Roads in europe
extremeWhich is the highest pub in England?
🇬🇧 England
Craving a pint at the UK's highest pub? Then set your GPS for the Tan Hill Inn in North Yorkshire! This isn't your average pub crawl – the journey is part of the adventure. You'll be cruising Regional Route 71 (aka Pennine Way), a fully paved road stretching just over 20 miles (32.83km) from Reeth to Brough (or Brough under Stainmore, if you're feeling fancy). But don't let the "paved" part fool you. Nestled in the Yorkshire Dales, this road throws some challenges your way. Think steep climbs, narrow sections, and weather that can turn on a dime. Seriously, fog, snow, and biting cold are regular visitors. Reaching the pub, perched at 1,732 feet (528m) above sea level, is a reward in itself. The views are breathtaking, showcasing the wild beauty of Swaledale. Just be prepared for an isolated drive through a desolate but gorgeous landscape. This trip isn't for the faint of heart, but the bragging rights (and that well-deserved pint) are totally worth it!
hardNational Tourist Route Valdresflye is a scenic drive in Norway
🇳🇴 Norway
# Valdresflye: Norway's Epic Mountain Drive Craving one of Norway's most iconic scenic drives? Look no further than Valdresflye, a stunning 49km (30.44 miles) mountain road that'll blow your mind. This gem winds through Innlandet county in eastern Norway, connecting the charming town of Garli near Beitostølen to Besstrondsæter in Vågå. What makes this route so special? It's totally paved and sits perched high on the eastern slopes of the Jotunheimen mountains, topping out at an impressive 1,393m (4,570ft) above sea level. You're literally driving one of the country's highest roads. The road gets narrow in spots, but it's mostly smooth sailing across rolling terrain that feels absolutely effortless—like it's floating above the landscape. The views? Absolutely breathtaking. From the mountain plateau, you'll catch stunning vistas of Jotunheimen National Park, then swoop down through gorgeous cultivated valleys dotted with mountain pastures. The contrast is incredible—wild, jagged peaks to the north giving way to serene rolling hills to the south. It's like you're getting two completely different landscapes in one drive. The route typically opens in early May and stays accessible through November, though the summit weather can shift in a heartbeat, so come prepared. The plateau is a legendary launching point for spring skiing expeditions and hikes into the Jotunheimen peaks. **Quick Details:** No ferries, but note that winter closures affect some stretches between Garli and Maurvangen (though the Hindsæter to Gjendesheim section stays open). Keep your eyes peeled for reindeer herds along the way!
hardCan I drive to Ushguli?
🇬🇪 Georgia
Okay, picture this: You're in Georgia, ready for an adventure, and Ushguli is calling your name. Nestled way up in the Samegrelo-Zemo Svaneti region, this village is the highest continuously inhabited spot in Europe, chilling at a cool 7,910 feet above sea level. So, can you drive there? Technically, yes, but hold your horses (or should I say, your SUVs?). The 57-mile "road" from Tsageri is mostly unpaved. We're talking a bumpy, rocky, river-crossing kind of adventure. You'll want that SUV, a spare tire (or two), and a full tank of gas because this isn't your average Sunday drive. Some might even argue it's more of a walking path than a road! The views though? Totally worth it. Think towering mountain peaks, vibrant valleys, and glimpses of ancient glaciers. It's a photographer's dream. Keep in mind, this route is usually snowed in from late October to late June/early July. Timing is everything! Heads up: This road isn't for the faint of heart. You'll be hugging the Patara Enguri River the whole way. It can get pretty dicey after heavy rain, and there's a real risk of rock slides. Expect steep drops and a generally rough ride. The good news? The, ahem, "security concerns" you might have heard about seem to be a thing of the past. You can usually travel safely and even offer a ride to a friendly local. Oh, and the highest point of this "road" reaches a whopping 8,595 feet. Buckle up!
extremeBassa dell'Ajet: Driving the historic 1744 military track in Piedmont
🇮🇹 Italy
# Bassa dell'Ajet: Italy's Ultimate High-Alpine Adventure Tucked away in the Province of Cuneo in northwest Italy, Bassa dell'Ajet is one seriously impressive mountain pass sitting at 2,328m (7,637ft). This isn't just any drive—it's a chance to tackle one of the Alps' most historically significant military ridges while soaking in the raw, dramatic beauty of the Piedmont region. The pass sits right on the ridgeline between the Varaita and Maira valleys, and it's part of the legendary Varaita-Maira-Kammstraße (nicknamed the Strada dei Cannoni, or "Road of Cannons"). This high-altitude track hugs the mountain crest, serving up panoramic views that'll leave you speechless. Back in the day, it was strategically engineered to move troops and artillery across the alpine peaks quickly and discreetly—away from prying eyes in the valleys below. Here's where it gets real: the entire road is completely unpaved. We're talking a natural surface cart track with gravel—the kind of terrain that'll test your skills and your vehicle. Built way back in 1744 by military engineer Ignazio Bertola during the War of the Austrian Succession, this route is narrow. *Really* narrow. In many spots, there's barely enough room for one vehicle, and those unprotected drops? They plunge hundreds of meters with zero guardrails. You need absolute concentration and a capable high-clearance 4x4 to handle it. The challenge here is serious and ever-changing. Gravel is the norm, but one thunderstorm and you've got mud. We're talking 4WD and genuine off-road expertise required. Weather dominates this route—frequent closures happen due to lightning, brutal winds, and snow that can block passage well into summer. This is the kind of drive that demands mechanical know-how, weather awareness, and a deep respect for the 250-year-old engineering that made moving cannons across these peaks possible in the first place.