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Trail du Taillefer

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ABOUT

About Trail du Taillefer

The Trail du Taillefer is a 36-kilometer trail race with 2,400 meters of elevation gain that takes place in the Taillefer massif, in the Isere department, starting from La Morte. The Taillefer is a crystalline massif situated south of Grenoble, between the Romanche to the north and the Valbonnais to the south. This relatively little-known massif, dominated by the Taillefer summit at 2,857 meters, is a wild and preserved territory offering remarkable trail running terrain.

La Morte is a small ski resort situated at approximately 1,350 meters of altitude on the western slope of the Taillefer massif. This discreet and authentic mountain village is the ideal starting point for exploring a massif that remains away from major tourist crowds. The tranquility of the place contrasts with the power of the landscapes that unfold as soon as one climbs the trails.

The Taillefer massif is a high-altitude crystalline plateau bearing numerous glacial lakes, which has earned it the nickname "massif of a thousand lakes." Among the most famous, Lac Fourchu, Lac de la Fare, and Lac du Poursollet offer mirrors of water set in rocky cirques of primitive beauty. These altitude lakes, fed by snowmelt and precipitation, are surrounded by close-cropped alpine grasslands and rocks polished by ancient glaciers.

The 36-kilometer course with 2,400 meters of positive elevation gain crosses the different atmospheres of the Taillefer massif. The trails start from the conifer forests of La Morte to progressively climb toward alpine pastures and lakeside plateaus. The climbs are long and steady, with sustained gradients that put legs to the test. High-altitude passages, above 2,000 meters, offer extraordinary panoramas of the Ecrins, the Meije, Mont Blanc, and the Belledonne chain.

The difficulties of the Trail du Taillefer are essentially linked to the concentrated elevation gain and the altitude terrain. The ratio of 2,400 meters of positive elevation over 36 kilometers implies steep and continuous climbs. The terrain at altitude is often rocky and technical, with passages over erratic boulders and glacial moraines. Trails winding between altitude lakes require attention due to slippery surfaces near the water. The descents are technical, on steep slopes where rocks and roots demand sure-footedness.

The climate of the Taillefer massif is mountainous, with abundant precipitation feeding the numerous lakes. Summers are cool at altitude, and afternoon thunderstorms are frequent. Snow can persist late in the season on north-facing slopes and around altitude lakes, adding an additional difficulty early in the season. Sunshine is nevertheless good owing to the massif's southern position.

For international runners, La Morte is accessible from Grenoble, approximately 50 kilometers via the Col d'Ornon road. Grenoble is a major university city served by TGV and with an airport. Accommodation in La Morte and surrounding villages is modest but sufficient, consisting of lodges, tourist apartments, and a few hotels.

Assistance on the Trail du Taillefer is an important element due to the relative isolation of the massif and the length of high-altitude portions. An assistant familiar with access routes and local conditions can provide precious logistical support, particularly for hydration management and equipment adapted to altitude conditions.

The Trail du Taillefer is a race that invites discovery of a secret massif, a territory of lakes and rocks where the mountain reveals itself in its purest form. It is an intimate and intense trail experience, far from the crowds, in the heart of a landscape of raw and enchanting beauty.

BLOCK 2 · COURSE

36 km, 2,400 m climb

Course map, elevation profile, notable segments, aid stations and cutoffs.

BLOCK 3 · ESTIMATOR

Your real finish time

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What's your real finish time?

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Examples

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  • Trained runner

    Top 10 % of finishers

    ~5h30
  • Regular runner

    Around the median

    ~7h00
  • Conservative pace

    Comfortable margin

    ~9h00

BLOCK 4 · DATA & RESULTS

2025 edition — times and roll of honour

Winners, median time, finish rate, distribution. Claim your finish to reveal your full name.

Find your finish time

Search across all historical finishers.

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No results yet for Trail du Taillefer 2026 2025.

Results are added shortly after each edition.

BLOCK 5 · LOGISTICS

Pre-race essentials

How to get there (train, carpool), bib pickup, mandatory gear, and everything you need to know on-site.

How to get there

Pick your way in

Come by train

Get to the race by train

Type your nearest station — we'll send you to SNCF Connect.

Race date: 19 July 2026

Dates on SNCF Connect must be re-selected on the next page (their URL doesn't yet carry them).

Carpool

Share the ride with other runners

Soon: a per-race carpool thread with direct runner-to-runner listings. In the meantime, check BlaBlaCar or local Facebook groups.

Weather & conditions

Plan for what's coming up there.

Live forecast

Available starting J-14 — 24 days to go.

BLOCK 8 · COMMUNITY

From finishers, for finishers

Ratings, race reports, photos, Q&A. What you won't read on the official site.

Frequently asked questions

What is the distance of Trail du Taillefer?

Trail du Taillefer features a 36 km course with 2,400 m of elevation gain, starting from La Morte in the Isère department.

When does the 2026 edition take place?

The 2026 edition is scheduled for July 19, 2026.

What are the cut-off times?

Runners typically have 10 hours to complete the 36 km. The elevation-to-distance ratio is very demanding.

What mandatory gear is required?

Mandatory gear includes a waterproof jacket, emergency blanket, whistle, minimum 1L water reserve, fully charged mobile phone, and warm clothing (gloves, beanie).

Can I have a crew or personal assistant?

Yes, personal assistants can meet you at accessible aid stations. goodborning. can help you find a local assistant in La Morte.

How do I register for Trail du Taillefer?

Registration opens on the official race website. A medical certificate dated less than one year is required.

Do you organize this race?

19 July 2026

J-38