France Remontees · CC BY-SA 4.0
The cut
1,412 metres, to scale.
A slice through Infernet canyons where it is deepest and narrowest, measured on the Copernicus relief model every 30 m. Same scale as the landmark standing on the floor.
Standing on the floor, to scale: Eiffel Tower · 330 m · Burj Khalifa · 828 m
Depth is measured to the lower rim; the width is from rim to rim. A 30 m relief model smooths the narrowest walls, so a slot canyon reads shallower than it is.
1,412m
Depth
measured on the 30 m relief model
10.3km
Rim to rim
measured on the 30 m relief model
57°
Steepest wall
average over 300 m, from the relief
5.0km
Length
Rim to floor
13 °C warmer at the bottom.
In July the afternoon reaches 26 °C on the floor, against 12 °C on the rim. The best months to hike are from June to September. The rim freezes at night from September to May.
- 5°-8°Jan
- 6°-8°Feb
- 9°-4°Mar
- 14°1°Apr
- 19°6°May
- 23°10°Jun
- 26°12°Jul
- 26°12°Aug
- 22°9°Sep
- 17°4°Oct
- 10°-3°Nov
- 6°-7°Dec
Afternoon highs, 1991–2020 averages (NASA POWER) brought to the altitude of the rim and of the floor with the standard lapse rate (6.5 °C per 1 000 m). Shade, wind and rock change this on the day. Not a forecast.
Infernet canyons is a canyon in France, cut by the Romanche river. The relief model measures 1,412 m from the floor to the lower rim, and 2,046 m to the higher one. It runs for 5.0 km. Rim to rim it is 10 km wide where the cut was taken.
Getting there.
- Mont-de-Lansnearest town · 2.9 km in a straight line
- Parking 1,250 m awaynearest car park in OpenStreetMap, straight line
- Viewpointsnearest viewpoint · 0.6 km from the floor
- Chambéry Aix les Bains airport (CMF)nearest airport with scheduled flights · 68 km in a straight lineCar hire at GNB airport (Grenoble)Discover Cars · sponsored link↗
- From June to Septemberbest months to hike (estimate)
Plan the visit
Guided hikes, a bed nearby, a car.
Some links above are affiliate links: if you book through them we may earn a commission, at no extra cost to you. It never changes what the data on this page says.
The river
The Romanche runs highest from March to May.
The Romanche carries about 5.6 m³/s on average here. It runs highest from March to May, fed by melting snow.
- 3.0 m³/sJan
- 1.8 m³/sFeb
- 9.3 m³/sMar
- 12 m³/sApr
- 12 m³/sMay
- 8.0 m³/sJun
- 3.7 m³/sJul
- 2.0 m³/sAug
- 2.0 m³/sSep
- 3.2 m³/sOct
- 5.3 m³/sNov
- 5.0 m³/sDec
From about 1.8 m³/s in the lowest month to 12 m³/s in the highest. Its basin above this point covers 370 km².
The Romanche from source to mouth on Riveryas — coming soon
Estimate: long-term flow from the HydroATLAS model (WaterGAP, 1971–2000) shaped by the monthly rain, snow and temperature of the area (NASA POWER). Dams change it. Not a forecast.
From the sky.
The canyon from above, with the relief shaded, the line of the cut, the river and what people have mapped around it.
N
6 km
Sentinel-2 cloudless 2016 (EOX, CC BY 4.0), 22 × 22 km, north up. The line is the cut above. Points © OpenStreetMap contributors.
Around the canyon.
- 46viewpoints within 5 kmPoint de vue, Décollage parapente Air2alpes Été, Crête du bras and 43 more
- 5marked hiking routes within 4 kmTour de l'Oisans et Écrins, Tour du Parc National des Écrins, Réseau pédestre de l'Oisans and 2 more
- 1climbing crags within 3 kmMur d'Escalade
- 11footbridges and suspension bridges within 3 kmAccès Vallée Blanche, Pied Moutet and 9 more
- 1named waterfalls within 4 kmCascade de la Pisse
- 46car parks within 3 km
- 35information boards and visitor centres within 4 km
- 17bus stops within 2 km
- 15campsites within 8 kmCamping Le Vernis, Camping la Ferme Noémie, Aire Camping-cars Venosc Les Ougiers and 12 more
- 101hotels and guesthouses within 8 kmAtmosphere Hôtel, Les Balcons de l'Oisans, Château Hôtel de la Muzelle and 98 more
- 53restaurants and cafés within 4 km
- via ferrata routes within 4 km
- rafting, canoe, kayak or canyoning spots within 4 km
- swimming spots within 3 km
- caves within 3 km
Counted in OpenStreetMap, the map anyone can edit, around the floor of the canyon. A low number may just mean nobody has mapped it yet. © OpenStreetMap contributors (ODbL).
Towns nearby
- Mont-de-Lans2.9 km in a straight line
- Les Deux Alpes4.1 km in a straight line
- Le Bourg-d'Oisans5.0 km in a straight line
- Huez5.3 km in a straight line
- Livet-et-Gavet15 km in a straight line
- Vaulnaveys-le-Bas22 km in a straight line
- Vaulnaveys-le-Haut24 km in a straight line
- Revel24 km in a straight line
In our other atlases
What else is around Infernet canyons.
The river that carved it, the waterfalls inside it, the mountains on the rim, the lakes, beaches and island nearby — from our six sister atlases, each with its own figures.
Riveryas1 rivers in the canyon
Cascadyas4 waterfalls nearbyComing soon
Peakyas40 mountains within 15 km
Lakeyas3 lakes within 15 kmComing soonFigures from the sister sites' databases (Wikidata, HydroATLAS, GeoNames, NOAA, OpenStreetMap). Links open when each site is online.
Month by month
The weather, at the floor and at the rim.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Afternoon · floor | 5 | 6 | 9 | 14 | 19 | 23 | 26 | 26 | 22 | 17 | 10 | 6 |
| Afternoon · rim | -8 | -8 | -4 | 1 | 6 | 10 | 12 | 12 | 9 | 4 | -3 | -7 |
| Night · rim | -17 | -17 | -13 | -8 | -4 | 0 | 2 | 1 | -2 | -6 | -10 | -15 |
| Rain (mm) | 69 | 54 | 67 | 61 | 90 | 71 | 58 | 59 | 59 | 75 | 88 | 79 |
| Rainy days | 11 | 10 | 11 | 13 | 16 | 14 | 11 | 11 | 11 | 12 | 13 | 12 |
| Sun hours/day | 4.0 | 4.6 | 5.4 | 5.9 | 6.6 | 8.7 | 9.5 | 8.5 | 7.1 | 5.2 | 3.5 | 3.5 |
| Snow on the ground (cm) | 36 | 43 | 29 | 13 | 7 | 1 | 0 | 0 | 2 | 7 | 15 | 25 |
| Afternoon · floor | Afternoon · rim | Night · rim | Rain (mm) | Sun hours/day | |
|---|---|---|---|---|---|
| Jan | 5 | -8 | -17 | 69 | 4.0 |
| Feb | 6 | -8 | -17 | 54 | 4.6 |
| Mar | 9 | -4 | -13 | 67 | 5.4 |
| Apr | 14 | 1 | -8 | 61 | 5.9 |
| May | 19 | 6 | -4 | 90 | 6.6 |
| Jun | 23 | 10 | 0 | 71 | 8.7 |
| Jul | 26 | 12 | 2 | 58 | 9.5 |
| Aug | 26 | 12 | 1 | 59 | 8.5 |
| Sep | 22 | 9 | -2 | 59 | 7.1 |
| Oct | 17 | 4 | -6 | 75 | 5.2 |
| Nov | 10 | -3 | -10 | 88 | 3.5 |
| Dec | 6 | -7 | -15 | 79 | 3.5 |
Averages 1991–2020 (NASA POWER) for a cell about 55 km wide, brought to the floor (723 m) and the rim (2,769 m) with the standard lapse rate. Not a forecast.
Photographs
Seen from the trail.
Recent years
Wet years, dry years.
Rain of each month as a share of the 1991–2020 average. A dry year means a lower river and hotter rock; a wet one, more water in the gorge.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2020 | 68% | 145% | 118% | 78% | 133% | 171% | 58% | 152% | 119% | 180% | 33% | 122% |
| 2021 | 156% | 77% | 57% | 107% | 127% | 97% | 155% | 82% | 118% | 85% | 62% | 158% |
| 2022 | 31% | 82% | 24% | 93% | 62% | 85% | 26% | 89% | 156% | 71% | 107% | 135% |
| 2023 | 57% | 11% | 147% | 98% | 102% | 184% | 52% | 110% | 92% | 155% | 150% | 177% |
| 2024 | 110% | 103% | 166% | 99% | 153% | 147% | 87% | 44% | 233% | 169% | 54% | 82% |
| 2025 | 113% | 36% | 75% | 109% | 66% | 63% | 74% | 86% | 124% | 88% | 54% | 38% |
130% or more: wet month 70% or less: dry month
Compare with the neighbours.
Infernet canyons
France
- 1,412 mDepth
- 10 kmRim to rim
- 5.0 kmLength
- 57°Steepest wall
Where these figures come from
| Name, type, published depth and length | Wikidata (Q110311172) · CC0 |
|---|---|
| The cut: depth, width, wall and 3D model | Copernicus DEM GLO-30 · © DLR e.V., © Airbus Defence and Space GmbH, Copernicus/ESA |
| River flow and basin | HydroATLAS / RiverATLAS v1.0 (Linke et al. 2019) · CC BY 4.0 |
| Climate | NASA POWER, 1991–2020 |
| Viewpoints, trails, bridges and the river line | © OpenStreetMap contributors · ODbL |
| Images | EOX Sentinel-2 cloudless 2016 · CC BY 4.0; Wikimedia Commons |
| Rivers, waterfalls, mountains, lakes, beaches and islands nearby | Coastya, Lakeyas, Peakyas, Cascadyas, Islandyas, Riveryas |
Every figure is an average, an estimate or a count from a public dataset. Licences and methods: data sources.
The family
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