Austria Isiwal · CC BY-SA 4.0
The cut
173 metres, to scale.
A slice through Raabklamm 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. This is a narrow canyon: the published depth, where there is one, is the better figure.
173m
Depth
measured on the 30 m relief model
4.7km
Rim to rim
measured on the 30 m relief model
19°
Steepest wall
average over 300 m, from the relief
444m
Floor altitude
Rim to floor
Afternoons, up top and down below.
In July the afternoon reaches 27 °C. The best months to hike are in May and in September. The rim freezes at night from December to March. The wettest months are from June to September: in a narrow canyon a flash flood arrives without warning, even from rain upstream.
- 2°1°Jan
- 4°3°Feb
- 10°8°Mar
- 16°14°Apr
- 20°19°May
- 25°23°Jun
- 27°25°Jul
- 26°24°Aug
- 20°19°Sep
- 15°13°Oct
- 8°7°Nov
- 3°2°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.
Valley in Styria, Austria
Raabklamm is a slot canyon in Austria, cut by the Raab river. The relief model measures 173 m from the floor to the lower rim, and 240 m to the higher one. Rim to rim it is 4.7 km wide where the cut was taken.
Getting there.
- Mortantschnearest town · 1.8 km in a straight line
- Parking 360 m awaynearest car park in OpenStreetMap, straight line
- Viewpointsnearest viewpoint · 6.5 km from the floor
- Graz Airport (GRZ)nearest airport with scheduled flights · 27 km in a straight lineCar hire at GRZ airport (Feldkirchen bei Graz)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 Raab runs highest from May to October.
The Raab carries about 1.7 m³/s on average here. It runs highest from May to October.
- 0.8 m³/sJan
- 1.2 m³/sFeb
- 1.9 m³/sMar
- 2.2 m³/sApr
- 2.7 m³/sMay
- 2.9 m³/sJun
- 2.9 m³/sJul
- 3.1 m³/sAug
- 3.2 m³/sSep
- 2.4 m³/sOct
- 1.9 m³/sNov
- 1.1 m³/sDec
From about 0.76 m³/s in the lowest month to 3.2 m³/s in the highest. Its basin above this point covers 152 km².
Follow the Rába 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
2 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.
- 4viewpoints within 5 km
- 36marked hiking routes within 4 kmSteirischer Mariazellerweg 06, Naaser Höhlenweg, Wanderweg 4a Stroßkreuzweg and 33 more
- 18footbridges and suspension bridges within 3 kmLehbauer-Steg, Haselbachsteg, Raabklammweg Wehr and 15 more
- 13caves within 3 km
- 15car parks within 3 km
- 50information boards and visitor centres within 4 km
- 21bus stops within 2 km
- 2campsites within 8 kmCamping Wellwelt Kumberg, Stellplatz Harrer Hill
- 19hotels and guesthouses within 8 kmGarten Hotel Ochensberger, Wittgruberhof, Jugendh., Ederer Seminarhotel and 16 more
- 10restaurants 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
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
- Mortantsch1.8 km in a straight line
- Göttelsberg2.9 km in a straight line
- Stenzengreith3.9 km in a straight line
- Weiz4.2 km in a straight line
- Arzberg4.9 km in a straight line
- Naas5.0 km in a straight line
- Krottendorf5.8 km in a straight line
- Kumberg6.3 km in a straight line
In our other atlases
What else is around Raabklamm.
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.
Peakyas41 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 | 2 | 4 | 10 | 16 | 20 | 25 | 27 | 26 | 20 | 15 | 8 | 3 |
| Afternoon · rim | 1 | 3 | 8 | 14 | 19 | 23 | 25 | 24 | 19 | 13 | 7 | 2 |
| Night · rim | -7 | -6 | -2 | 3 | 7 | 12 | 14 | 13 | 8 | 3 | -1 | -5 |
| Rain (mm) | 32 | 40 | 43 | 52 | 90 | 104 | 107 | 110 | 96 | 61 | 56 | 42 |
| Rainy days | 6 | 7 | 9 | 10 | 14 | 15 | 16 | 14 | 11 | 10 | 9 | 8 |
| Sun hours/day | 2.7 | 4.0 | 4.9 | 5.8 | 5.9 | 6.5 | 7.0 | 6.5 | 5.0 | 4.3 | 2.6 | 2.3 |
| Snow on the ground (cm) | 16 | 14 | 8 | 2 | 0 | 0 | 0 | 0 | 0 | 1 | 6 | 14 |
| Afternoon · floor | Afternoon · rim | Night · rim | Rain (mm) | Sun hours/day | |
|---|---|---|---|---|---|
| Jan | 2 | 1 | -7 | 32 | 2.7 |
| Feb | 4 | 3 | -6 | 40 | 4.0 |
| Mar | 10 | 8 | -2 | 43 | 4.9 |
| Apr | 16 | 14 | 3 | 52 | 5.8 |
| May | 20 | 19 | 7 | 90 | 5.9 |
| Jun | 25 | 23 | 12 | 104 | 6.5 |
| Jul | 27 | 25 | 14 | 107 | 7.0 |
| Aug | 26 | 24 | 13 | 110 | 6.5 |
| Sep | 20 | 19 | 8 | 96 | 5.0 |
| Oct | 15 | 13 | 3 | 61 | 4.3 |
| Nov | 8 | 7 | -1 | 56 | 2.6 |
| Dec | 3 | 2 | -5 | 42 | 2.3 |
Averages 1991–2020 (NASA POWER) for a cell about 55 km wide, brought to the floor (444 m) and the rim (684 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 | 26% | 75% | 75% | 72% | 69% | 117% | 160% | 148% | 119% | 151% | 41% | 204% |
| 2021 | 149% | 56% | 46% | 65% | 156% | 44% | 86% | 107% | 44% | 68% | 135% | 136% |
| 2022 | 51% | 66% | 41% | 113% | 91% | 101% | 91% | 74% | 134% | 51% | 90% | 113% |
| 2023 | 266% | 55% | 159% | 164% | 154% | 111% | 212% | 160% | 26% | 150% | 131% | 209% |
| 2024 | 153% | 75% | 119% | 109% | 160% | 139% | 136% | 56% | 178% | 151% | 36% | 38% |
| 2025 | 86% | 63% | 219% | 156% | 90% | 55% | 139% | 59% | 125% | 83% | 107% | 59% |
130% or more: wet month 70% or less: dry month
Compare with the neighbours.
Raabklamm
Austria
- 173 mDepth
- 4.7 kmRim to rim
- —Length
- 19°Steepest wall
Where these figures come from
| Name, type, published depth and length | Wikidata (Q2124791) · 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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