France Fanny Schertzer · CC BY-SA 3.0
The cut
1,620 metres, to scale.
A slice through Manival 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. On one side the ground was still rising 12 km out: the true rim is further away and the canyon deeper.
1,620m
Depth
measured on the 30 m relief model
19.4km
Rim to rim
measured on the 30 m relief model
55°
Steepest wall
average over 300 m, from the relief
7.4km
Length
Rim to floor
12 °C warmer at the bottom.
In July the afternoon reaches 28 °C on the floor, against 16 °C on the rim. The best months to hike are in May and in September. The rim freezes at night from October to April. The wettest months are in November.
- 8°-4°Jan
- 10°-3°Feb
- 14°2°Mar
- 18°6°Apr
- 22°10°May
- 26°14°Jun
- 28°16°Jul
- 28°16°Aug
- 24°12°Sep
- 20°8°Oct
- 13°1°Nov
- 9°-3°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.
Manival is a canyon in France, cut by the Torrent du Manival. The relief model measures 1,620 m from the floor to the lower rim, and 1,866 m to the higher one. It runs for 7.4 km. Rim to rim it is 19 km wide where the cut was taken.
Getting there.
- Saint-Nazaire-les-Eymesnearest town · 1.0 km in a straight line
- Parking 470 m awaynearest car park in OpenStreetMap, straight line
- Viewpointsnearest viewpoint · 1.0 km from the floor
- Grenoble Alpes Isère Airport (GNB)nearest airport with scheduled flights · 43 km in a straight lineCar hire at GNB airport (Grenoble)Discover Cars · sponsored link↗
- In May and in 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 Torrent du Manival runs highest from November to June.
The Torrent du Manival carries about 86 m³/s on average here. It runs highest from November to June.
- 199 m³/sJan
- 176 m³/sFeb
- 194 m³/sMar
- 193 m³/sApr
- 217 m³/sMay
- 160 m³/sJun
- 95 m³/sJul
- 38 m³/sAug
- 52 m³/sSep
- 114 m³/sOct
- 184 m³/sNov
- 198 m³/sDec
From about 38 m³/s in the lowest month to 217 m³/s in the highest. Its basin above this point covers 5,624 km².
Follow the Isère from source to mouth on Riveryas
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), 24 × 24 km, north up. The line is the cut above. Points © OpenStreetMap contributors.
Around the canyon.
- 37viewpoints within 5 kmLa Croix de Révollat - Belvédère, panorama du Grésivaudan and 35 more
- 34marked hiking routes within 4 kmChemin d'Assise, Cluny - Montcenis, La Tour de Revel (par le Mollard), Circuit de la Monta and 31 more
- 19footbridges and suspension bridges within 3 kmPasserelle, Voie verte des berges de l'Isère and 17 more
- 1rafting, canoe, kayak or canyoning spots within 4 km
- 1swimming spots within 3 km
- 235car parks within 3 km
- 52information boards and visitor centres within 4 km
- 57bus stops within 2 km
- 3campsites within 8 kmCamping des Petites Roches, La Virette
- 35hotels and guesthouses within 8 kmB&B Hôtel Grenoble Université, La Chantournelle, Auberge du Sappey and 32 more
- 50restaurants and cafés within 4 km
- via ferrata routes within 4 km
- climbing crags within 3 km
- named waterfalls within 4 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
- Saint-Nazaire-les-Eymes1.0 km in a straight line
- Villard-Bonnot2.2 km in a straight line
- Saint-Ismier2.4 km in a straight line
- Le Versoud2.4 km in a straight line
- Bernin3.0 km in a straight line
- Crolles4.3 km in a straight line
- Biviers4.6 km in a straight line
- Montbonnot-Saint-Martin4.7 km in a straight line
In our other atlases
What else is around Manival.
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.
Cascadyas1 waterfalls nearbyComing soon
Peakyas40 mountains within 15 kmFigures 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 | 8 | 10 | 14 | 18 | 22 | 26 | 28 | 28 | 24 | 20 | 13 | 9 |
| Afternoon · rim | -4 | -3 | 2 | 6 | 10 | 14 | 16 | 16 | 12 | 8 | 1 | -3 |
| Night · rim | -12 | -12 | -9 | -5 | -1 | 3 | 5 | 4 | 0 | -3 | -7 | -10 |
| Rain (mm) | 70 | 57 | 68 | 65 | 88 | 65 | 56 | 58 | 67 | 85 | 100 | 77 |
| Rainy days | 11 | 10 | 11 | 12 | 14 | 12 | 10 | 9 | 10 | 12 | 13 | 12 |
| Sun hours/day | 2.7 | 4.0 | 5.8 | 6.9 | 7.4 | 9.4 | 9.8 | 8.6 | 7.0 | 4.7 | 2.9 | 2.3 |
| Snow on the ground (cm) | 17 | 15 | 12 | 6 | 2 | 0 | 0 | 0 | 0 | 2 | 10 | 15 |
| Afternoon · floor | Afternoon · rim | Night · rim | Rain (mm) | Sun hours/day | |
|---|---|---|---|---|---|
| Jan | 8 | -4 | -12 | 70 | 2.7 |
| Feb | 10 | -3 | -12 | 57 | 4.0 |
| Mar | 14 | 2 | -9 | 68 | 5.8 |
| Apr | 18 | 6 | -5 | 65 | 6.9 |
| May | 22 | 10 | -1 | 88 | 7.4 |
| Jun | 26 | 14 | 3 | 65 | 9.4 |
| Jul | 28 | 16 | 5 | 56 | 9.8 |
| Aug | 28 | 16 | 4 | 58 | 8.6 |
| Sep | 24 | 12 | 0 | 67 | 7.0 |
| Oct | 20 | 8 | -3 | 85 | 4.7 |
| Nov | 13 | 1 | -7 | 100 | 2.9 |
| Dec | 9 | -3 | -10 | 77 | 2.3 |
Averages 1991–2020 (NASA POWER) for a cell about 55 km wide, brought to the floor (216 m) and the rim (2,082 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 | 52% | 90% | 97% | 68% | 90% | 151% | 28% | 119% | 117% | 142% | 35% | 163% |
| 2021 | 150% | 79% | 49% | 122% | 144% | 115% | 172% | 88% | 108% | 117% | 74% | 162% |
| 2022 | 37% | 71% | 30% | 85% | 36% | 101% | 19% | 79% | 160% | 53% | 145% | 154% |
| 2023 | 46% | 16% | 109% | 87% | 92% | 186% | 46% | 75% | 76% | 168% | 119% | 155% |
| 2024 | 108% | 104% | 199% | 104% | 157% | 159% | 104% | 48% | 193% | 141% | 44% | 104% |
| 2025 | 116% | 39% | 57% | 78% | 50% | 46% | 68% | 62% | 105% | 86% | 69% | 40% |
130% or more: wet month 70% or less: dry month
Compare with the neighbours.
Manival
France
- 1,620 mDepth
- 19 kmRim to rim
- 7.4 kmLength
- 55°Steepest wall
Where these figures come from
| Name, type, published depth and length | Wikidata (Q3110965) · 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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