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Colored leaves at Ryujinkyo ravine (6367543963)

Japan Japan Canyon

Ryūjin kyō

317 m from rim to floor.

See the cutWhen to go

Yamaguchi Yoshiaki from Japan · CC BY-SA 2.0

The cut

317 metres, to scale.

A slice through Ryūjin kyō where it is deepest and narrowest, measured on the Copernicus relief model every 30 m. Same scale as the landmark standing on the floor.

404 m478 m317 m4.8 km rim to rim1.0 kmvertical scale × 1.4404 m478 m317 m4.8 km rim to rim1.0 kmvertical scale × 2.9

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.

317m

Depth

measured on the 30 m relief model

4.8km

Rim to rim

measured on the 30 m relief model

17°

Steepest wall

average over 300 m, from the relief

87m

Floor altitude

Rim to floor

3 °C warmer at the bottom.

In August the afternoon reaches 28 °C on the floor, against 26 °C on the rim. The best months to hike are in May and in October. The wettest months are in July and from September to October.

rim · 478 mfloor · 87 m
  1. 7°4°Jan
  2. 8°5°Feb
  3. 12°9°Mar
  4. 16°14°Apr
  5. 20°18°May
  6. 23°21°Jun
  7. 27°24°Jul
  8. 28°26°Aug
  9. 25°22°Sep
  10. 20°18°Oct
  11. 15°12°Nov
  12. 10°7°Dec
Hike: May, OctWettest: Jul, Sep–Oct

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.

Canyon in Japan

Ryūjin kyō is a canyon in Japan. The relief model measures 317 m from the floor to the lower rim, and 391 m to the higher one. Rim to rim it is 4.8 km wide where the cut was taken.

Getting there.

  • Daigonearest town · 14 km in a straight line
  • Parking 2,060 m awaynearest car park in OpenStreetMap, straight line
  • 竜神大吊り橋nearest viewpoint · 2.2 km from the floor
  • Ibaraki Airport (IBR)nearest airport with scheduled flights · 56 km in a straight lineCar hire at NRT airport (Narita)Discover Cars · sponsored link
  • In May and in Octoberbest 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.

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.

Ryūjin kyō seen from above (Sentinel-2) N 3 km

Sentinel-2 cloudless 2016 (EOX, CC BY 4.0), 10 × 10 km, north up. The line is the cut above. Points © OpenStreetMap contributors.

Around the canyon.

  • 2viewpoints within 5 km竜神大吊り橋, 休場展望台
  • 3footbridges and suspension bridges within 3 km渕見橋, 竜神大吊橋, 亀ヶ渕橋
  • 3car parks within 3 km
  • 14bus stops within 2 km
  • 1campsites within 8 km上小川キャンプ場
  • 2hotels and guesthouses within 8 km大菅温泉元湯旅館, 里美屋温泉旅館
  • marked hiking routes 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
  • information boards and visitor centres within 4 km
  • restaurants and cafés within 4 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

  • Daigo14 km in a straight line
  • Hitachiomiya14 km in a straight line
  • Ōmiya16 km in a straight line
  • Hitachi-ota16 km in a straight line
  • Hitachi19 km in a straight line
  • Higashidate20 km in a straight line
  • Takahagi22 km in a straight line
  • Ishitsuka24 km in a straight line

In our other atlases

What else is around Ryūjin kyō.

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.

Peakyas14 mountains within 15 km
Mount Myo457 m · 4.1 kmMount Kagoiwa501 m · 5.8 kmMount Okukuji-Nantai654 m · 8.4 kmMount Tatsuware658 m · 9.2 kmMount Nabeashi552 m · 9.4 kmMount Chofuku496 m · 9.5 kmMount Takasuzu623 m · 11 kmMount Kamine598 m · 12 km

Figures 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.

JanFebMarAprMayJunJulAugSepOctNovDec
Afternoon · floor7812162023272825201510
Afternoon · rim45914182124262218127
Night · rim-2-21510141820171161
Rain (mm)6354961191331511761441842038966
Rainy days66111113161816151387
Sun hours/day5.95.86.06.16.04.84.85.94.74.34.75.2
Snow on the ground (cm)11116100000017
Afternoon · floorAfternoon · rimNight · rimRain (mm)Sun hours/day
Jan74-2635.9
Feb85-2545.8
Mar1291966.0
Apr161451196.1
May2018101336.0
Jun2321141514.8
Jul2724181764.8
Aug2826201445.9
Sep2522171844.7
Oct2018112034.3
Nov15126894.7
Dec1071665.2

Averages 1991–2020 (NASA POWER) for a cell about 55 km wide, brought to the floor (87 m) and the rim (478 m) with the standard lapse rate. Not a forecast.

Photographs

Seen from the trail.

Ryujin Big Suspension Bridge (51847121896)
Raita Futo from Tokyo, Japan · CC BY 2.0
Colored leaves at Ryujinkyo ravine (6367543301)
Yamaguchi Yoshiaki from Japan · CC BY-SA 2.0
Ryujin Dam 01
Σ64 · CC BY 3.0

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.

JanFebMarAprMayJunJulAugSepOctNovDec
2020177%62%124%150%100%137%169%38%86%75%26%27%
202167%123%170%122%86%95%157%232%84%90%91%194%
202234%118%89%140%122%67%94%98%115%54%107%82%
202339%80%108%87%157%352%66%77%149%63%84%33%
2024104%123%177%82%147%117%83%209%103%112%152%6%
202548%24%159%144%219%108%88%92%115%103%72%141%

130% or more: wet month 70% or less: dry month

Compare with the neighbours.

Ryūjin kyō

Japan

  • 317 mDepth
  • 4.8 kmRim to rim
  • —Length
  • 17°Steepest wall

Ryūōkyō

Japan · 70 km

  • 461 mDepth
  • 3.2 kmRim to rim
  • —Length
  • 32°Steepest wall

See the guide

Nagatoro Valley

Japan · 136 km

  • 423 mDepth
  • 6.8 kmRim to rim
  • —Length
  • 23°Steepest wall

See the guide

Sanbaseki Gorge

Japan · 140 km

  • 429 mDepth
  • 5.7 kmRim to rim
  • —Length
  • 24°Steepest wall

See the guide

Where these figures come from

Name, type, published depth and lengthWikidata (Q11598381) · CC0
The cut: depth, width, wall and 3D modelCopernicus DEM GLO-30 · © DLR e.V., © Airbus Defence and Space GmbH, Copernicus/ESA
ClimateNASA POWER, 1991–2020
Viewpoints, trails, bridges and the river line© OpenStreetMap contributors · ODbL
ImagesEOX Sentinel-2 cloudless 2016 · CC BY 4.0; Wikimedia Commons
Rivers, waterfalls, mountains, lakes, beaches and islands nearbyCoastya, 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.

beachesCoastyaFind your beach: sea temperature, sun and swimming month by month.Visit
lakesLakeyasEvery lake on Earth: water temperature, ice, depth and the shore.Coming soonVisit
mountainsPeakyasEvery summit in 3D: summit weather, the 0 °C line, huts and trails.Visit
waterfallsCascadyasEvery waterfall: height, flow month by month and when it roars.Coming soonVisit
islandsIslandyasEvery island from the sea up: size, sea temperature, ferries and 3D.Visit riversRiveryasEvery river from source to sea: the journey, the flow and the basin in numbers.Visit
canyonsCanyonyasEvery canyon cut to scale: depth to the floor, rim and floor temperatures, trails and viewpoints.You are here