Mont Lachat rises majestically above the Les Houches sector, offering a striking blend of alpine ruggedness and accessible adventure. The mountain’s silhouette dominates the surrounding skyline, a constant reminder of the natural beauty that defines the Chamonix valley. Whether you’re a seasoned trekker or a family looking for a gentle day‑out, the summit promises unrivalled panoramas and a sense of accomplishment that lingers long after you descend.
From the moment you spot the Mont Lachat peak from the tramway du Mont Blanc, the anticipation builds: the crisp air, the whistle of the Bellevue cable car, and the promise of an elevation gain that feels both challenging and rewarding. In the sections that follow, we’ll explore routes, safety tips, and the hidden gems that make this hike a true mountain experience.
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Where is Mont Lachat?
Perched at an altitude of 2,484 m, Mont Lachat crowns the western fringe of the Chamonix valley, just a stone’s throw from the ski‑resort town of Les Houches. The peak is part of the larger Aiguilles Rouges range, a rugged wall of limestone that separates the valley from the Mont Blanc massif. Its coordinates place it directly above the historic Bellevue lift, making the ascent a convenient option for both locals and visitors.
Because the mountain sits on the watershed between the Arve river and the glacier‑fed streams flowing south, weather can shift suddenly. Typical summer conditions bring clear skies and a comfortable temperature range, while autumn often drapes the summit in mist, adding an ethereal quality to the already dramatic landscape.
Getting to the Trailhead: Bellevue Lift and Cable Car
The most popular gateway to Mont Lachat is the Bellevue lift, which whisks hikers up to the mid‑mountain plateau where the main trailheads begin. From Les Houches, you can also ride the Bellevue cable car, a short yet scenic journey that offers a glimpse of the valley below before depositing you at the foot of the ascent.
For those preferring a longer approach, the tramway du Mont Blanc provides a historic route that winds its way up the valley, stopping at several points where you can join the path to the summit. Both options are family‑friendly, with the tramway’s carriages designed to accommodate luggage, strollers, and even dogs (as long as they are kept leashed and under control).
- Bellevue lift – runs from 8 am to 6 pm (summer schedule)
- Bellevue cable car – departs every 15 minutes during peak season
- Tramway du Mont Blanc – operates hourly, ticket included in the Chamonix valley transport pass
Hiking & Running Trails to the Summit
The classic hiking trail to Mont Lachat starts at the Bellevue lift station and follows a well‑marked route that gradually climbs through alpine meadows and rocky outcrops. Expect an elevation gain of roughly 800 m over a distance of 4.5 km, a moderate difficulty level that suits intermediate hikers.
For trail‑running enthusiasts, a parallel “run‑only” track diverges after the first half‑hour, offering a more technical level with occasional scramble sections. The “trail running” route maintains the same altitude profile but reduces the total distance to 3.8 km, making it a popular choice for athletes seeking a quick but intense workout.
| Trail type | Distance (km) | Elevation gain (m) |
|---|---|---|
| Standard hiking trail | 4.5 | 800 |
| Trail running | 3.8 | 800 |
Both routes are marked with the familiar white‑red mountain marker, a symbol of safety and clarity that the local authorities maintain year‑round. Along the way, you’ll pass several small shelters that double as snack bars where you can refill your water bottles and enjoy a quick bite.
Points of Interest and Refuges Around Mont Lachat
Mid‑ascent, the path leads you past the historic Refuge du nid aigle, a stone‑built shelter that has served hikers since the 1930s. Though modest, the refuge offers a warm stone fireplace, a simple kitchen, and, most importantly, a place to rest before tackling the final push to the summit.
Just below the summit plateau stands the newer Refuge “Alpine View”, managed by the local mountain club. It provides basic accommodation for those who wish to break the climb into two days, as well as a small snack bar serving hot chocolate, croissants, and energising trail mix – perfect for refuelling after a steep section.
For families, the area around the first shelter is a designated “family‑friendly” zone, with gentle slopes ideal for children and a clear sign indicating that dogs are allowed on leashes. The signage reminds walkers to keep dogs under control, especially near the more fragile alpine flora.
Safety, Difficulty and Weather Considerations
The overall difficulty of the Mont Lachat ascent is rated as moderate. The trail’s steepest sections have a gradient of about 15 %, which can be taxing for beginners but is manageable with a steady pace. In contrast, the ridge walk near the summit requires a good sense of balance, as the footing can be loose underfoot.
Weather in the Chamonix valley changes quickly. A typical summer day starts clear, but by afternoon, clouds can roll in, bringing rain and reduced visibility. When conditions turn wet, the trail’s rocky sections become slippery, so waterproof hiking boots with good grip are essential. Always check the latest weather forecast before setting out, and consider carrying a lightweight windbreaker.
For those with a heightened sense of adventure, the “technical level” can be increased by adding an optional side‑trip to the nearby “Aiguille du Grand Collet”, which involves modest scrambling and offers additional panoramic views of the valley below.
Family‑Friendly Options: Children, Dogs and Snack Bars
One of the strongest appeals of Mont Lachat is its suitability for families. The lower sections of the route are gentle enough for children aged six and up, and the presence of the snack bar at the Refuge du nid aigle provides a comfortable resting point. Parents appreciate the clear signage that indicates “Children” friendly areas, as well as the frequent benches placed along the path.
Dogs are welcome on the trail, provided they remain on a leash. The “Dogs allowed” sign appears at the trailhead and near each refuge, reminding owners to clean up after their pets to protect the delicate alpine environment.
For families that prefer a shorter outing, a loop that starts at the Bellevue lift, follows the lower meadow, and returns via the “Kids’ Trail” offers a 2‑km walk with minimal elevation gain. This variation is especially popular during the school holidays, when the valley’s snack bar hosts “mini‑picnic” events for children.
Frequent Asked Questions
What is the best time of year to hike Mont Lachat?
The optimal period runs from late June to early September, when the snow has melted from the lower slopes and the weather is most stable. Early summer can still have lingering patches of snow, while late autumn often brings increased rain and colder temperatures.
How long does the ascent take from the Bellevue lift?
On average, hikers reach the summit in 2 hours to 2 hours 30 minutes, depending on fitness level and pace. Trail‑runners usually complete the climb in about 1 hour 15 minutes.
Are there any facilities for overnight stays?
Yes. Both the historic Refuge du nid aigle and the newer Alpine View refuge provide basic sleeping quarters. Reservations are recommended during peak season, especially for groups larger than four.
Can I bring my dog on the trail?
Dogs are allowed throughout the entire route, provided they stay on a leash and owners clean up after them. The “Dogs allowed” signs at the trailhead and near each refuge reinforce this policy.
Is the hike suitable for children?
The lower sections are considered family‑friendly, with gentle gradients and frequent resting spots. Children aged six and older can comfortably complete the full ascent under adult supervision.
Beyond the Summit: What Comes Next?
Reaching the summit of Mont Lachat feels like a personal triumph, but the adventure doesn’t have to stop there. From the peak you can enjoy 360‑degree views that stretch across the entire Chamonix valley, the towering Mont Blanc massif, and the sprawling Aiguilles Rouges. Photographers often linger to capture the shifting light that bathes the alpine scenery in gold at sunrise or pink at sunset.
If you still have energy, extend your trek towards the neighbouring “Pic du Grand Aiguille”, a short ridge walk that adds a few more minutes of exhilarating exposure. Alternatively, take the descent via the “Bellevue cable car” and treat yourself to a relaxed afternoon at the valley’s snack bar, where you can recount stories of the climb over a warm drink.
Whether you’re planning a solo expedition, a family day out, or a spirited trail‑running session, Mont Lachat offers a versatile playground that showcases the very best of the Chamonix valley’s natural beauty. Pack your boots, check the weather, and let the mountain guide you to unforgettable moments.
