Japan Bariston · CC BY-SA 4.0
The cut
216 metres, to scale.
A slice through Kōrankei 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: Great Pyramid · 139 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.
216m
Depth
measured on the 30 m relief model
4.0km
Rim to rim
measured on the 30 m relief model
18°
Steepest wall
average over 300 m, from the relief
93m
Floor altitude
Rim to floor
Afternoons, up top and down below.
In August the afternoon reaches 31 °C. The best months to hike are from April to May and from October to November. The wettest months are from June to July and from September to October.
- 8°6°Jan
- 9°8°Feb
- 13°12°Mar
- 18°17°Apr
- 23°22°May
- 26°25°Jun
- 30°28°Jul
- 31°30°Aug
- 28°26°Sep
- 22°21°Oct
- 16°15°Nov
- 10°9°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.
Gorge in Asuke Town, Toyota City, Aichi Prefecture, Japan
Kōrankei is a canyon in Japan. The relief model measures 216 m from the floor to the lower rim. Rim to rim it is 4.0 km wide where the cut was taken.
Getting there.
- Toyotanearest town · 16 km in a straight line
- Parking 2,840 m awaynearest car park in OpenStreetMap, straight line
- 縄文のビーナスnearest viewpoint · 2.8 km from the floor
- Nagoya Airport / JASDF Komaki Air Base (NKM)nearest airport with scheduled flights · 38 km in a straight lineCar hire at NGO airport (Tokoname)Discover Cars · sponsored link↗
- From April to May and from October to Novemberbest 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 the river runs highest from April to July and from September to October.
The the river carries about 5.7 m³/s on average here. It runs highest from April to July and from September to October.
- 2.4 m³/sJan
- 3.1 m³/sFeb
- 5.4 m³/sMar
- 7.1 m³/sApr
- 7.5 m³/sMay
- 8.0 m³/sJun
- 8.8 m³/sJul
- 6.6 m³/sAug
- 8.2 m³/sSep
- 9.2 m³/sOct
- 6.1 m³/sNov
- 3.7 m³/sDec
From about 2.4 m³/s in the lowest month to 9.2 m³/s in the highest. Its basin above this point covers 182 km².
The Oto River 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
2 km
Sentinel-2 cloudless 2016 (EOX, CC BY 4.0), 9 × 9 km, north up. The line is the cut above. Points © OpenStreetMap contributors.
Around the canyon.
- 5viewpoints within 5 km香嵐渓, 観音山, カタクリ群生地 and 2 more
- 1marked hiking routes within 4 km東海自然歩道
- 8footbridges and suspension bridges within 3 kmあゆみ橋, 落合橋, 薫楓橋 and 5 more
- 5car parks within 3 km
- 2information boards and visitor centres within 4 km
- 27bus stops within 2 km
- 1campsites within 8 km三河高原キャンプ村
- 1hotels and guesthouses within 8 km百年草
- 5restaurants and cafés within 4 km
- via ferrata routes within 4 km
- climbing crags within 3 km
- rafting, canoe, kayak or canyoning spots within 4 km
- swimming spots 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
- Toyota16 km in a straight line
- Miyoshi21 km in a straight line
- Seto22 km in a straight line
- Morowa23 km in a straight line
- Shitara23 km in a straight line
- Nisshin24 km in a straight line
- Nagakute24 km in a straight line
- Okazaki24 km in a straight line
In our other atlases
What else is around Kōrankei.
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
Peakyas4 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 | 9 | 13 | 18 | 23 | 26 | 30 | 31 | 28 | 22 | 16 | 10 |
| Afternoon · rim | 6 | 8 | 12 | 17 | 22 | 25 | 28 | 30 | 26 | 21 | 15 | 9 |
| Night · rim | -2 | -1 | 1 | 6 | 12 | 16 | 21 | 21 | 18 | 12 | 6 | 1 |
| Rain (mm) | 67 | 82 | 128 | 156 | 172 | 202 | 229 | 157 | 216 | 200 | 93 | 74 |
| Rainy days | 7 | 8 | 10 | 11 | 12 | 15 | 17 | 15 | 15 | 12 | 8 | 8 |
| Sun hours/day | 4.9 | 5.4 | 5.9 | 6.3 | 6.5 | 4.8 | 4.9 | 6.2 | 5.2 | 5.1 | 5.0 | 4.5 |
| Snow on the ground (cm) | 8 | 7 | 4 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 5 |
| Afternoon · floor | Afternoon · rim | Night · rim | Rain (mm) | Sun hours/day | |
|---|---|---|---|---|---|
| Jan | 8 | 6 | -2 | 67 | 4.9 |
| Feb | 9 | 8 | -1 | 82 | 5.4 |
| Mar | 13 | 12 | 1 | 128 | 5.9 |
| Apr | 18 | 17 | 6 | 156 | 6.3 |
| May | 23 | 22 | 12 | 172 | 6.5 |
| Jun | 26 | 25 | 16 | 202 | 4.8 |
| Jul | 30 | 28 | 21 | 229 | 4.9 |
| Aug | 31 | 30 | 21 | 157 | 6.2 |
| Sep | 28 | 26 | 18 | 216 | 5.2 |
| Oct | 22 | 21 | 12 | 200 | 5.1 |
| Nov | 16 | 15 | 6 | 93 | 5.0 |
| Dec | 10 | 9 | 1 | 74 | 4.5 |
Averages 1991–2020 (NASA POWER) for a cell about 55 km wide, brought to the floor (93 m) and the rim (334 m) with the standard lapse rate. Not a forecast.
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 | 124% | 97% | 141% | 103% | 77% | 137% | 277% | 27% | 98% | 131% | 42% | 36% |
| 2021 | 138% | 84% | 185% | 119% | 152% | 80% | 156% | 258% | 108% | 39% | 91% | 142% |
| 2022 | 39% | 52% | 93% | 139% | 125% | 73% | 174% | 157% | 173% | 35% | 135% | 45% |
| 2023 | 57% | 65% | 101% | 117% | 198% | 292% | 50% | 186% | 72% | 79% | 113% | 69% |
| 2024 | 70% | 193% | 189% | 126% | 178% | 175% | 79% | 386% | 66% | 140% | 151% | 8% |
| 2025 | 47% | 27% | 109% | 116% | 194% | 146% | 88% | 49% | 135% | 104% | 39% | 105% |
130% or more: wet month 70% or less: dry month
Compare with the neighbours.
Kōrankei
Japan
- 216 mDepth
- 4.0 kmRim to rim
- —Length
- 18°Steepest wall
Where these figures come from
| Name, type, published depth and length | Wikidata (Q11667254) · 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
Do you prefer beaches, lakes, mountains, waterfalls, islands, rivers or canyons?
Same idea, other landscapes: field atlases built on open data, month by month, in seven languages.
beaches
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lakes
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waterfalls
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islands
Every island from the sea up: size, sea temperature, ferries and 3D.Visit rivers
Every river from source to sea: the journey, the flow and the basin in numbers.Visit 
canyons
Every canyon cut to scale: depth to the floor, rim and floor temperatures, trails and viewpoints.You are here