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Dans la vallée des gorges de Thelja

Tunisia Tunisia Canyon

Selja Gorges

124 m from rim to floor.

See the cutWhen to go

Skander zarrad · CC BY-SA 4.0

The cut

124 metres, to scale.

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

329 m355 m124 m10 km rim to rim1.0 kmvertical scale × 3.0329 m355 m124 m10 km rim to rim1.0 kmvertical scale × 3.0

Standing on the floor, to scale: Big Ben · 96 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.

124m

Depth

measured on the 30 m relief model

10.3km

Rim to rim

measured on the 30 m relief model

22°

Steepest wall

average over 300 m, from the relief

205m

Floor altitude

Rim to floor

Afternoons, up top and down below.

In July the afternoon reaches 40 °C. The best months to hike are in March and in November. The floor passes 35 °C from June to August: walk at dawn and carry water.

rim · 355 mfloor · 205 m
  1. 15°14°Jan
  2. 17°16°Feb
  3. 21°20°Mar
  4. 26°25°Apr
  5. 31°30°May
  6. 36°35°Jun
  7. 40°39°Jul
  8. 38°38°Aug
  9. 33°32°Sep
  10. 28°27°Oct
  11. 20°19°Nov
  12. 16°15°Dec
Hike: Mar, NovFloor above 35 °C: Jun–Aug

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 Tunisia

Selja Gorges is a canyon in Tunisia. The relief model measures 124 m from the floor to the lower rim, and 150 m to the higher one. Rim to rim it is 10 km wide where the cut was taken.

Read more on Wikipedia

Getting there.

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 in March and from December to January.

The the river carries about 0.57 m³/s on average here. It runs highest in March and from December to January. It is lowest from June to August.

  1. 1.6 m³/sJan
  2. 1.0 m³/sFeb
  3. 1.3 m³/sMar
  4. 1.2 m³/sApr
  5. 0.8 m³/sMay
  6. 0.3 m³/sJun
  7. 0.1 m³/sJul
  8. 0.1 m³/sAug
  9. 0.5 m³/sSep
  10. 0.6 m³/sOct
  11. 1.1 m³/sNov
  12. 1.3 m³/sDec

From about 0.11 m³/s in the lowest month to 1.6 m³/s in the highest. Its basin above this point covers 683 km².

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.

Selja Gorges seen from above (Sentinel-2) 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.

  • 3hotels and guesthouses within 8 kmHôtel Thelja, Camping Les Jardins, Maison Des Jeunes Metlaoui
  • viewpoints within 5 km
  • marked hiking routes within 4 km
  • via ferrata routes within 4 km
  • climbing crags within 3 km
  • footbridges and suspension bridges 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
  • car parks within 3 km
  • information boards and visitor centres within 4 km
  • bus stops within 2 km
  • campsites within 8 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

  • Metlaoui6.9 km in a straight line
  • Moularès16 km in a straight line
  • Ar Rudayyif18 km in a straight line

Month by month

The weather, at the floor and at the rim.

JanFebMarAprMayJunJulAugSepOctNovDec
Afternoon · floor151721263136403833282016
Afternoon · rim141620253035393832271915
Night · rim3481216202424201694
Rain (mm)241224231883922192220
Rainy days334442126444
Sun hours/day7.28.29.010.011.112.512.711.49.48.47.36.8
Afternoon · floorAfternoon · rimNight · rimRain (mm)Sun hours/day
Jan15143247.2
Feb17164128.2
Mar21208249.0
Apr2625122310.0
May3130161811.1
Jun363520812.5
Jul403924312.7
Aug383824911.4
Sep333220229.4
Oct282716198.4
Nov20199227.3
Dec16154206.8

Averages 1991–2020 (NASA POWER) for a cell about 55 km wide, brought to the floor (205 m) and the rim (355 m) with the standard lapse rate. Not a forecast.

Photographs

Seen from the trail.

Gorges de Selja 28
Touzrimounir · CC BY-SA 4.0
Selja01(js)
Jerzy Strzelecki · CC BY-SA 3.0
L'entrée de la vallée des gorges de Thelja
Skander zarrad · CC BY-SA 4.0

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
202079%0%254%97%52%157%—7%137%72%51%71%
202114%24%65%55%39%29%—69%25%28%46%8%
202225%141%184%27%39%46%—90%146%6%10%18%
20238%52%4%29%449%175%—66%1%0%64%100%
20247%68%37%101%110%25%—69%126%132%29%20%
202564%188%48%110%127%11%—28%65%80%14%94%

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

Compare with the neighbours.

Selja Gorges

Tunisia

  • 124 mDepth
  • 10 kmRim to rim
  • —Length
  • 22°Steepest wall

El Kantara Gorge

Algeria · 260 km

  • 581 mDepth
  • 16 kmRim to rim
  • —Length
  • 32°Steepest wall

See the guide

Where these figures come from

Name, type, published depth and lengthWikidata (Q3110992) · CC0
The cut: depth, width, wall and 3D modelCopernicus DEM GLO-30 · © DLR e.V., © Airbus Defence and Space GmbH, Copernicus/ESA
River flow and basinHydroATLAS / RiverATLAS v1.0 (Linke et al. 2019) · CC BY 4.0
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

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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