{ const t = document.getElementById('trace-toast'); if (!t) return; t.querySelector('.toast-msg').textContent = $event.detail.msg; t.classList.add('show', $event.detail.type === 'danger' ? 'bg-danger' : ($event.detail.type === 'warning' ? 'bg-warning' : 'bg-dark'), 'text-white'); setTimeout(() => t.classList.remove('show'), 3500); })()">
Directions to trailhead
GPX downloaded! Open this trail in Isomaps for offline GPS navigation and topo maps.
No ads, no selling of your data. European mapping, privacy respected.
This route in your pocket: offline maps, guidance and safety alerts.
Distance134.83 km
Elevation gain5671 m
Elevation loss6334 m
Estimated time49 h 50 min
Altitude maximum1713 m
Altitude minimum506 m
TypeLoop
DifficultyVery hard
Weather forecast
5-day MeteoBlue forecast at the trail start — free with an account.
Create free account
About this trail
134.83 km loop hiking starting from Notre-Dame.
This hike includes 31 significant climbs. With a total elevation gain of 9506 m across 104.58 km, with an average slope of 9.1%.
- Climb 1 (at km 12.31 km): +97 m over 1.74 km, average slope 5.6%
- Climb 2 (at km 23.93 km): +120 m over 2.00 km, average slope 6.0%
- Climb 3 (at km 31.50 km): +77 m over 1.62 km, average slope 4.8%
- Climb 4 (at km 40.79 km): +350 m over 6.39 km, average slope 5.5%
- Climb 5 (at km 47.14 km): +192 m over 2.25 km, average slope 8.6%
- Climb 6 (at km 53.24 km): +252 m over 3.71 km, average slope 6.8%
- Climb 7 (at km 58.14 km): +202 m over 2.45 km, average slope 8.3%
- Climb 8 (at km 63.07 km): +373 m over 3.61 km, average slope 10.3%
- Climb 9 (at km 70.45 km): +249 m over 1.95 km, average slope 12.7%
- Climb 10 (at km 76.03 km): +597 m over 2.40 km, average slope 24.9%
- Climb 11 (at km 84.43 km): +337 m over 3.96 km, average slope 8.5%
- Climb 12 (at km 88.91 km): +70 m over 730 m, average slope 9.6%
- Climb 13 (at km 96.38 km): +431 m over 3.36 km, average slope 12.8%
- Climb 14 (at km 99.83 km): +107 m over 919 m, average slope 11.6%
- Climb 15 (at km 105.69 km): +96 m over 1.71 km, average slope 5.6%
- Climb 16 (at km 125.48 km): +1320 m over 11.40 km, average slope 11.6%
- Climb 17 (at km 143.71 km): +240 m over 2.35 km, average slope 10.2%
- Climb 18 (at km 149.56 km): +71 m over 1.84 km, average slope 3.9%
- Climb 19 (at km 155.40 km): +104 m over 2.02 km, average slope 5.2%
- Climb 20 (at km 173.67 km): +1152 m over 12.72 km, average slope 9.1%
- Climb 21 (at km 193.46 km): +389 m over 4.20 km, average slope 9.3%
- Climb 22 (at km 199.31 km): +276 m over 2.36 km, average slope 11.7%
- Climb 23 (at km 202.77 km): +229 m over 2.10 km, average slope 10.9%
- Climb 24 (at km 210.25 km): +174 m over 1.92 km, average slope 9.1%
- Climb 25 (at km 218.02 km): +584 m over 4.80 km, average slope 12.2%
- Climb 26 (at km 222.96 km): +91 m over 944 m, average slope 9.6%
- Climb 27 (at km 227.80 km): +150 m over 1.47 km, average slope 10.2%
- Climb 28 (at km 237.92 km): +43 m over 1.39 km, average slope 3.1%
- Climb 29 (at km 245.35 km): +275 m over 3.83 km, average slope 7.2%
- Climb 30 (at km 256.94 km): +316 m over 5.20 km, average slope 6.1%
- Climb 31 (at km 269.18 km): +542 m over 7.27 km, average slope 7.5%
isomaps
Scan to open this route in the app
This route in your pocket: offline maps, guidance and safety alerts.
-
Share photos of your trails
Help the community discover what each route really looks like.
-
No ads, no third-party trackers
Privacy-first analytics, hosted in France. Your data stays yours.
-
Truly free — no hidden premium
Topo maps, GPX, offline use included. No premium paywall.
-
A real app, not just a website
iOS + Android with offline topo maps and live GPS navigation.
French independent team — GDPR-native