High Route 1 — Stage 11: Rifugio Oratorio di Cuney → Oyace

15 km
+504 m
−1759 m
5.5 h
Fitness level
~3900 kcal estimated
Elevation profile
Map & route
Download GPXOfficial GPX track — Aosta Valley Region / lovevda.it
Description
Stage eleven brings the Alta Via 1 down from the high central section — Rifugio Oratorio di Cuney at 2652 m — to the Valpelline valley floor at Oyace, crossing exposed ridges and solitary pastures in a long descent losing nearly 1400 metres. Despite a modest positive gain of just 504 m, the stage earns its EE rating from short sections of scrambling on exposed rock and from the cumulative physical demand added to already-tired legs. The route tackles Col Chaleby (2653 m) and Col de Vessonaz (2793 m) — the stage's highest point — before the lengthy descent to Oyace unwinds on mixed terrain through sustained switchbacks. The Valpelline is one of the least visited and most untouched valleys in the Aosta region: no ski resorts, minimal tourist infrastructure, many active summer farms. Oyace (1397 m) is a small village with basic services and a regional bus connection to Aosta. An early departure before 7 AM is advised to reach Oyace in early afternoon and tackle the scramble sections with fresh energy.
Key points
Rifugio Oratorio di Cuney
2652 m · 0 km from start
Stage start
Col de Vessonaz
2793 m · 6.5 km from start
Stage high point, short equipped sections
Earth sciences
Geology & landscape
The descent toward Oyace crosses the Penninic stack with calcschists, micaschists and ophiolites (serpentinites and metabasalts) along Col de Vessonaz. Oceanic rocks show hydrothermal alteration with fibrous minerals to avoid. The Valpelline slope displays Würmian glacial deposits of the By glacier with rebuilt moraines and fluvio-glacial terraces. Below 2000 m, Austroalpine augen gneiss outcrops with quartz bands and chloritic phyllites. Colluvial deposits and active landslides indicate instability on steep slopes. The Oyace valley floor develops on alluvial deposits of the Buthier stream with pebbles of gneiss, serpentinite and limestone.
History & culture
Oyace is one of the smallest municipalities in Valpelline, with dairy tradition and active summer farms. The valley is among the least developed in the region.
Water sources
Water at Cuney hut. Carry supplies for the high traverse. Fountain in Oyace centre.
Getting there
VITA bus to Oyace from Aosta via Valpelline (limited schedule).
Parking
Parcheggio a Oyace centro per accesso alternativo.
Warnings
- Equipped sections on exposed rock: gloves advised
- Long descent after the pass: start early
- Check weather again before Col Vessonaz
Nearby peaks
Start & end
Start
Rifugio Oratorio di Cuney
2653 m
Finish
Oyace
1367 m
Refuges & bivouacs
Photo gallery
Flora along the trail
Wildlife to spot
Themes and features
Adjacent stages
ACurated and verified by Andrea
Data source: Catasto Sentieri Regione VdA + AllTrails (15.0 km verificati, tratti attrezzati segnalati) · Open data — DGR 899/2014
Last verified:
Valpelline
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