Multipitch Atlas

L'avenue des chamois

Motteux Péteux (south side, beside the Dent de Ruth) · Gastlosen · Switzerland

Bail with caveatsBolting confidence: high

A long, easy and very well bolted route up low-angle runnelled limestone slabs to point 2105 m on the ridge between the Dent de Ruth and the Dent de Savigny. Only pitches 2 and 3 steepen. The belays are on comfortable grass ledges and it is the only line on the face, so you cannot get lost.

The slabs of the Motteux Péteux, with the path to the start of L'avenue des chamois marked in redPhoto: ewenalpi · CC BY-NC-ND 3.0

Photo

The slabs of the Motteux Péteux, with the path to the start of L'avenue des chamois marked in redPhoto: ewenalpi · CC BY-NC-ND 3.0
Hardest pitch
5a
Pitches
10
Length
300 m
Approach
75 min
Aspect
S
South-facing
Rope
1×60 m

The route

Overview

L'avenue des chamois is the easy long route of the southern Gastlosen: ten pitches, mostly 4b to 4c with one of 5a, on the slabs right of the Dent de Ruth's Diehl pillar. It finishes at the Motteux Péteux (2105 m), not on the Dent de Ruth itself. The rock is solid, the line traverses a fair amount, and the bolting is so generous that recent parties skipped bolts. A newer lower start adds two harder pitches. The climbing is the simple part; choose your descent with care.

The climbing

Pitch by pitch

Pitches of L'avenue des chamois
PitchGradeNotes
P13cThe original first pitch, reached by a little path. Low-angle runnelled slab.
P24cOne of the two steeper pitches.
P35aThe other steeper pitch and the hardest of the original route.
P44cRunnelled slab.
P54cRunnelled slab; seeps can leave parts wet after rain.
P64bSlab.
P74cSlab and runnels.
P84cSlab and runnels.
P94cSlab and runnels.
P102cEasy ground to the top at point 2105 m.

Getting there

Approach

To the parking

Drive to the Col du Mittelberg (1633 m), either from Jaun via the Abländschen road or from Saanen, and park there. The Jaun to Saanen bus stops at Mittelberg from May to October (daily in school holidays, otherwise weekends), and a 2026 party used it. The Grubenberg hut is 20 minutes above the car park.

On foot · about 75 min

From Mittelberg follow the path to the Grubenberg hut, then go up the small valley between the Amelier and the Husegg towards the col between the Amelier and the Dent de Ruth. Cross the col, descend to the foot of the Diehl pillar and cross the gully known as the Canapé de Ruth. A faint path across the scree leads to the start, on a ledge; camptocamp places it below a small hut tucked into the rock, which a 2024 party never saw. The original start is reached by a short path above the lowest rocks. Allow 1 hour to 1 hour 30 minutes.

Map of the walk-in

  • Crag
  • Parking

Loading map

The point marks the crag, not the exact start of the route.

Coordinates · crag

46.55233, 7.23340

Parking

46.54664, 7.25733

Col du Mittelberg (camptocamp waypoint 110084)

Point from camptocamp waypoint 531111 (Motteux Péteux, point 2105 m, the top of the route)

For your phone or watch

Download GPX

Contains the route point and parking. Opens in most mapping apps and GPS watches.

Points are compiled from published sources, with the precision stated above. They were not surveyed on the ground: check them against a current topo.

Getting down

Descent

Three options. (1) Abseil, the choice recommended by recent parties: the first anchor is just behind the cairn at the top, slightly below the ridge on the Dent de Ruth side, with small red arrows. Nine abseils of about 30 m, with a fixed rope at the bottom of the third, follow a marked line back to the foot of the route; the first ones are low-angle and broken by ledges and vegetation. Allow up to 2 hours 30 minutes. (2) Over the Dent de Ruth: follow the ridge (one rock step with four bolts), climb a grade II gully with six bolts to the east summit, then descend the south side on fixed ropes and cables to the col you crossed in the morning; about 45 minutes to the summit and 1 hour 30 minutes from there to Mittelberg, exposed T5 ground that must be dry. (3) On foot down a steep grass gully near the top and a final 15 to 20 m abseil from old cord: parties in 2024 and 2026 found it steep, slippery and unpleasant and advise against it.

Retreat

Bailing off the route

Bail with caveats

The belays are cabled or chained and the route is never steep, so abseiling from part-way up is feasible. The marked abseil line starts from the top and is not always the line of ascent, and the route traverses a good deal, so a retreat from mid-route means abseiling diagonally over ledges and vegetation where ropes snag.

Retreat from
Any belay; the lower pitches are the most direct.
Point of no return
None stated. High on the route it is quicker to top out and take the marked abseil line.
Carry
A 60 m rope gives 30 m abseils, which matches the marked line; pitch lengths are not published, so two ropes give more margin for a mid-route retreat.
Basis
Part stated, part inferredBelay equipment and the abseil line from the top are stated in camptocamp and trip reports; retreat from mid-route is inferred.

Partly inferred from the route facts

Safety

Hazards

  • The descent over the Dent de Ruth is very exposed if the ground is greasy or wet (T5, no fall allowed), even with the fixed ropes and cable.
  • The direct foot descent is steep and slippery and ends in an abseil from ageing cord.
  • The upper abseils are low-angle and catch on ledges and vegetation; one diagonal abseil is prone to jamming.
  • Camptocamp describes the fixed rope below the third abseil as rotten; a 2025 party found fixed ropes in good condition there. Check before you weight it.

Sun and weather

Conditions

South facing, from roughly 1800 m to 2105 m. Parties climb it from late May to early November. Seeps wet parts of the slabs after rain. The top is exposed to wind and to afternoon thunderstorms, and both foot descents need dry ground.

Usual season · Jun to Oct

Sun on the wall · S-facing

Working out the sunlit hours for this month.

  • January: not yet worked out
  • February: not yet worked out
  • March: not yet worked out
  • April: not yet worked out
  • May: not yet worked out
  • June (usual season): not yet worked out
  • July (usual season): not yet worked out
  • August (usual season): not yet worked out
  • September (usual season): not yet worked out
  • October (usual season): not yet worked out
  • November: not yet worked out
  • December: not yet worked out

Sun on the wallDaylight, wall in shade● Usual season

Estimated from the wall's aspect only. Ignores surrounding terrain, gullies and the wall's exact shape. Clock times are local to the wall (Central European time), for the 15th of each month.

Monthly climate averages for Gastlosen, 1991-2020
MeasureJanFebMarAprMayJun (usual season)Jul (usual season)Aug (usual season)Sep (usual season)Oct (usual season)NovDec
Mean daily high °C−3−225101416161292−2
Mean daily low °C−11−10−7−5−14663−1−6−10
Rain days 1 mm or more141214162020201815131314

● marks the usual climbing season. Averages for 1991-2020 at about 1766 m. Area climate from Open-Meteo reanalysis. Temperatures are adjusted to the height of the crag; rain comes from a grid cell of about 10 to 25 km, and summer highs on sea cliffs can read a few degrees low. The wall and valley can differ. Data: Open-Meteo, CC BY 4.0.

What to carry

Gear

12 quickdraws and one 60 m rope for the abseils (a 40 m rope is enough if you go over the Dent de Ruth). With 2×60 m you can join some abseils. Cams and nuts are not needed. Helmet.

Checklist

Quickdraws
12
Rope
1×60 m
Helmet
One each
Abseil device and prusik
The descent or the retreat involves abseiling

Derived from the route data; check it against a current topo

From climbers

Reader reports

Reader reports are not being collected yet. Until they are, check a current topo and the local club or guidebook publisher for recent changes to L'avenue des chamois.

Worth knowing

Tips

  • Allow about 3 hours for the ten pitches; slower parties take 4 to 5.
  • The new lower start, close to the path with all-new bolts, adds two pitches of about 5a to 5b and a short abseil designed as abseil practice; a 2025 party found them clearly harder than the rest and counted 12 pitches in all.
  • The route can be climbed in mountain boots, which jam well in the runnels.
  • Several 2026 parties thought the grades a little low and suggest 4c to 5b.

Open questions

Where sources disagree

  • Lower start: camptocamp describes three extra pitches; a 2025 party found two.
  • Grades: 5a maximum on camptocamp; 2026 parties suggest 4c to 5b, and a Wikiloc listing gives 5b.
  • Fixed rope on the abseil line: 'frankly rotten' in the camptocamp text, in good condition according to a 2025 report.
  • Approach: 1 hour 15 minutes on camptocamp; parties report 1 hour to 1 hour 30 minutes.

Provenance

Sources

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Compiled from published sources and last verified October 2026. Bolts, anchors and access change. Climbing is dangerous and you are responsible for your own decisions: check a current topo and read the disclaimer.