{ 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.
Distance70.46 km
Elevation gain7934 m
Elevation loss8477 m
Estimated time29 h 10 min
Altitude maximum2166 m
Altitude minimum507 m
TypeLoop
DifficultyVery hard
Weather forecast
5-day MeteoBlue forecast at the trail start — free with an account.
Create free account
About this trail
70.46 km loop hiking starting from Wertatscha.
This hike includes 17 significant climbs. With a total elevation gain of 5317 m across 22.44 km, with an average slope of 23.7%.
- Climb 1 (at km 604 m): +120 m over 479 m, average slope 25.1%
- Climb 2 (at km 2.54 km): +37 m over 168 m, average slope 22.1%
- Climb 3 (at km 6.81 km): +571 m over 1.97 km, average slope 29.0%
- Climb 4 (at km 8.33 km): +286 m over 452 m, average slope 63.3%
- Climb 5 (at km 10.76 km): +83 m over 425 m, average slope 19.5%
- Climb 6 (at km 16.38 km): +469 m over 1.83 km, average slope 25.6%
- Climb 7 (at km 17.29 km): +87 m over 215 m, average slope 40.5%
- Climb 8 (at km 21.19 km): +133 m over 1.68 km, average slope 7.9%
- Climb 9 (at km 28.08 km): +292 m over 1.64 km, average slope 17.8%
- Climb 10 (at km 32.60 km): +77 m over 799 m, average slope 9.6%
- Climb 11 (at km 36.20 km): +627 m over 2.10 km, average slope 29.9%
- Climb 12 (at km 40.47 km): +370 m over 1.09 km, average slope 34.0%
- Climb 13 (at km 54.73 km): +1119 m over 5.88 km, average slope 19.0%
- Climb 14 (at km 59.28 km): +103 m over 402 m, average slope 25.6%
- Climb 15 (at km 63.62 km): +561 m over 1.84 km, average slope 30.5%
- Climb 16 (at km 70.38 km): +351 m over 1.39 km, average slope 25.2%
- Climb 17 (at km 70.94 km): +31 m over 80 m, average slope 38.7%
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