Port de Lers
France, europe
11.5 km
1,517 m
hard
Year-round
# Port de Lers: A Pyrenean Gem Worth the Climb
Nestled in the French Pyrenees at 1,517 meters (4,977 feet), the Port de Lers is a stunning high mountain pass that'll make any road tripper's heart sing. Located in Ariège, this beauty is also known as Port de l'Hers or Port de Massat, and it's been tough enough to feature in the Tour de France multiple times.
The D18 is a fully paved route that connects three charming communities—Aulus-les-Bains to the west, Massat to the north, and Vicdessos to the east—with plenty of hairpin turns to keep things interesting. Fair warning though: you'll encounter some seriously steep sections (think double-digit gradients), so bring your A-game.
You've got two solid options for tackling this climb. Coming from Vicdessos is the shorter but spicier route at 11.5 km with 807 meters of elevation gain and some gnarly 10.9% stretches. If you prefer a steadier pace, head up from Massat's 16.6 km approach with 868 meters of elevation gain and more manageable 5.2% average grades (though the steepest bits still hit 8.9%).
Here's the best part: this is a year-round pass, so you can chase it in any season. Just keep in mind that winter can throw some curveballs with temporary closures, so check conditions before you go. About 3.8 km from the summit, you'll spot a junction with the Col d'Agnes climb if you're feeling extra adventurous.
Where is it?
Port de Lers is located in France (europe). Coordinates: 42.8064, 1.4114
Road Details
- Country
- France
- Continent
- europe
- Length
- 11.5 km
- Max Elevation
- 1,517 m
- Difficulty
- hard
- Coordinates
- 42.8064, 1.4114
Related Roads in europe
moderateWhere is Col des Ves?
🇫🇷 France
Okay, picture this: you're in the French Alps, deep in Vanoise National Park. You're headed for Col des Ves, a seriously high peak at over 9,100 feet. This isn't your average Sunday drive, folks! The road's unpaved and pretty much used for ski lift maintenance, but hey, it's one of the highest roads in France! Clocking in at just under 4 miles, this climb packs a punch with a hefty elevation gain, making for a pretty steep average gradient. The views? Absolutely stunning. The challenge? Totally worth it. Just a heads up: forget about this route in winter. Between the snow and the crazy winds, it's a no-go. Summer is the time to conquer this bad boy!
moderateConquering the Road to Sommet Bucher in the French Alps
🇫🇷 France
# Sommet Bûcher: A Historic Alpine Adventure Perched at 2,215 meters (7,267 feet) in the Hautes-Alpes department of France, Sommet Bûcher is a stunning high-altitude peak that delivers serious alpine vibes. Nestled within the gorgeous Queyras Regional Natural Park in southeastern France, this spot is all about dramatic mountain scenery and fascinating history. Here's where it gets interesting: this road has some serious credentials. Built back in 1892 by troops under Général Henri Baron Berge, it was originally a military strategic route designed to give commanders a bird's-eye view over the valley—and to prepare for potential attacks from Italy during some tense geopolitical times. Pretty cool that the same general later opened the legendary Col d'Izoard in 1897. Starting from Chateau Queyras, you're looking at a 13-kilometer (8-mile) ascent that climbs 858 meters with an average gradient of 6.6%. Sounds manageable, right? Well, hold on—this old military road gets serious in places, with sections hitting a brutal 12% gradient. It's mostly paved but with some rougher dirt sections mixed in, so a 4x4 vehicle is definitely recommended if you want to stay comfortable. At the summit, you'll find a communication tower and a tiny mountain hut—the perfect spot to catch your breath and soak in the panoramic valley views. It's a proper old-school alpine challenge that rewards you with incredible vistas.
extremeWhen was the Ruta Urdón-Tresviso track built?
🇪🇸 Spain
Okay, picture this: you're in northern Spain, ready for an adventure in the Picos de Europa mountains. Forget your car, because you're tackling the Ruta Urdón-Tresviso on foot! This isn't your average stroll, though. This old mule track, also known as Subida a Tresviso or La Senda de La Peña, is a real lung-buster. Built way back in the 19th century, this 5.9km (3.66 miles) trail winds its way from the N-621 road up to the charming village of Tresviso. Sounds idyllic, right? Well, hold on tight! This path is unpaved, super rocky, and relentlessly steep – we're talking a maximum gradient of 37%! With an elevation gain of 895 meters, your legs will definitely feel it! Oh, and did I mention the hairpin turns and serious drop-offs? Yeah, you'll need to watch your step. But here's the payoff: the views are absolutely insane. You'll pass through spots like Ahileras, Entrelospuentes, and the aptly named Balcón de Pilatos, which boasts a 600m vertical drop and incredible views of the Urdón River. Plus, keep an eye out for Los Invernales de Prias before you reach Tresviso. Just a heads-up: summers can be scorching, and winter brings snow, so pack accordingly and bring plenty of water! Trust me, the challenge is worth it for the bragging rights and the unforgettable scenery.
hardMonte Gran Costa: A historic military peak along the Assietta Road
🇮🇹 Italy
# Monte Gran Costa: Italy's Alpine Military Marvel Perched at 2,615 meters (8,579 feet) in the Cottian Alps, Monte Gran Costa is basically Italy's answer to "how high can you go?" It's one of the country's most breathtaking high-altitude drives, and the views? Absolutely worth the trip. ## Getting There You'll access Monte Gran Costa exclusively via the legendary Strada dell'Assietta (SP173), a ridge road that's equal parts thrilling and historic. The peak sits snugly between Colle d'Assietta and Colle Lauson. From the main ridge road, a short unpaved military track branches off and leads you up to the summit plateau where all the fascinating ruins await. ## A Step Back in Time Here's where it gets really cool: Monte Gran Costa was a major military hotspot back in the late 1800s. The Batteria del Gran Costa—a fortress built in the 1880s—still dominates the landscape. You can wander through the remains of the Casermaggio, an absolutely massive barracks that once housed hundreds of soldiers. Sure, the roofs are long gone, but these stone structures tell an incredible story of 19th-century alpine military engineering. ## The Views Are Unreal From the flat summit plateau, you're looking at a full 360-degree panorama. The Susa Valley spreads out to the north, while the Chisone Valley stretches south. It's genuinely one of the best viewpoints in the Gran Bosco di Salbertrand Park, and the plateau itself makes for a perfect pit stop to soak it all in. ## What to Expect The unpaved gravel track is narrow, rocky, and definitely demands a high-clearance vehicle. Summer is your window—the road's only open during those months. Be ready for thin air, surprise weather changes, and potentially slippery conditions. It's challenging, but absolutely doable if you're prepared.