Austria Edelmauswaldgeist · CC0
The cut
722 metres, to scale.
A slice through Hintere Tormäuer 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 · Empire State · 443 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.
722m
Depth
measured on the 30 m relief model
5.0km
Rim to rim
measured on the 30 m relief model
46°
Steepest wall
average over 300 m, from the relief
523m
Floor altitude
Rim to floor
5 °C warmer at the bottom.
In July the afternoon reaches 24 °C on the floor, against 19 °C on the rim. The best months to hike are from May to September. The rim freezes at night from November to March. The wettest months are from May to August: in a narrow canyon a flash flood arrives without warning, even from rain upstream.
- 2°-4°Jan
- 3°-2°Feb
- 8°3°Mar
- 14°9°Apr
- 18°13°May
- 22°17°Jun
- 24°19°Jul
- 24°18°Aug
- 19°14°Sep
- 14°9°Oct
- 8°3°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.
Ravine of river Erlauf in Lower Austria
Hintere Tormäuer is a slot canyon in Austria, cut by the Erlauf river. The relief model measures 722 m from the floor to the lower rim. Rim to rim it is 5.0 km wide where the cut was taken.
Getting there.
- Puchenstubennearest town · 7.1 km in a straight line
- Parking 530 m awaynearest car park in OpenStreetMap, straight line
- Viewpointsnearest viewpoint · 1.6 km from the floor
- Linz-Hörsching Airport (LNZ)nearest airport with scheduled flights · 90 km in a straight lineCar hire at LNZ airport (Linz)Discover Cars · sponsored link↗
- From May to 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 Erlauf runs highest in March and from May to September.
The Erlauf carries about 2.8 m³/s on average here. It runs highest in March and from May to September.
- 2.7 m³/sJan
- 3.1 m³/sFeb
- 4.2 m³/sMar
- 3.5 m³/sApr
- 4.8 m³/sMay
- 5.4 m³/sJun
- 5.3 m³/sJul
- 5.3 m³/sAug
- 4.9 m³/sSep
- 3.4 m³/sOct
- 1.9 m³/sNov
- 1.3 m³/sDec
From about 1.3 m³/s in the lowest month to 5.4 m³/s in the highest. Its basin above this point covers 121 km².
The Erlauf 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
3 km
Sentinel-2 cloudless 2016 (EOX, CC BY 4.0), 11 × 11 km, north up. The line is the cut above. Points © OpenStreetMap contributors.
Around the canyon.
- 14viewpoints within 5 kmÖtschergräben, Ötscherblick, Kaiserthron and 11 more
- 26marked hiking routes within 4 kmWaldmarkweg, Ötscherland-Rundwanderweg, Erlauf (Trefflingfall) - Bärenlacken and 23 more
- 32footbridges and suspension bridges within 3 km
- 4named waterfalls within 4 kmSchleierfall, Mirafall, Kienfall and 1 more
- 23caves within 3 km
- 8car parks within 3 km
- 20information boards and visitor centres within 4 km
- 32hotels and guesthouses within 8 kmHaus am Mitterbach'l, Filzwieser, Almhaus Hochbärneck and 29 more
- 9restaurants 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
- bus stops within 2 km
- campsites within 8 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
- Puchenstuben7.1 km in a straight line
- Mariazell11 km in a straight line
- Frankenfels14 km in a straight line
- Gaming15 km in a straight line
- Scheibbs17 km in a straight line
- Lunz am See18 km in a straight line
- Türnitz18 km in a straight line
- Sankt Georgen an der Leys19 km in a straight line
In our other atlases
What else is around Hintere Tormäuer.
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
Cascadyas3 waterfalls nearbyComing soon
Peakyas53 mountains within 15 km
Lakeyas2 lakes within 15 kmComing soonFigures 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 | 3 | 8 | 14 | 18 | 22 | 24 | 24 | 19 | 14 | 8 | 3 |
| Afternoon · rim | -4 | -2 | 3 | 9 | 13 | 17 | 19 | 18 | 14 | 9 | 3 | -2 |
| Night · rim | -10 | -10 | -6 | -2 | 3 | 7 | 9 | 8 | 4 | -1 | -5 | -9 |
| Rain (mm) | 79 | 63 | 72 | 56 | 118 | 134 | 131 | 132 | 106 | 74 | 60 | 66 |
| Rainy days | 12 | 12 | 14 | 12 | 16 | 18 | 18 | 15 | 13 | 12 | 12 | 14 |
| Sun hours/day | 1.9 | 3.6 | 4.7 | 6.5 | 6.5 | 7.1 | 7.3 | 6.9 | 5.2 | 3.6 | 1.7 | 1.5 |
| Snow on the ground (cm) | 18 | 17 | 11 | 3 | 0 | 0 | 0 | 0 | 0 | 2 | 7 | 16 |
| Afternoon · floor | Afternoon · rim | Night · rim | Rain (mm) | Sun hours/day | |
|---|---|---|---|---|---|
| Jan | 2 | -4 | -10 | 79 | 1.9 |
| Feb | 3 | -2 | -10 | 63 | 3.6 |
| Mar | 8 | 3 | -6 | 72 | 4.7 |
| Apr | 14 | 9 | -2 | 56 | 6.5 |
| May | 18 | 13 | 3 | 118 | 6.5 |
| Jun | 22 | 17 | 7 | 134 | 7.1 |
| Jul | 24 | 19 | 9 | 131 | 7.3 |
| Aug | 24 | 18 | 8 | 132 | 6.9 |
| Sep | 19 | 14 | 4 | 106 | 5.2 |
| Oct | 14 | 9 | -1 | 74 | 3.6 |
| Nov | 8 | 3 | -5 | 60 | 1.7 |
| Dec | 3 | -2 | -9 | 66 | 1.5 |
Averages 1991–2020 (NASA POWER) for a cell about 55 km wide, brought to the floor (523 m) and the rim (1,296 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 | 46% | 185% | 67% | 42% | 113% | 143% | 110% | 146% | 149% | 167% | 33% | 79% |
| 2021 | 110% | 53% | 64% | 90% | 99% | 52% | 119% | 148% | 47% | 53% | 114% | 137% |
| 2022 | 84% | 108% | 26% | 161% | 78% | 105% | 101% | 105% | 114% | 73% | 114% | 77% |
| 2023 | 69% | 133% | 67% | 274% | 74% | 72% | 85% | 123% | 44% | 78% | 261% | 242% |
| 2024 | 89% | 88% | 72% | 132% | 93% | 100% | 99% | 68% | 310% | 80% | 39% | 84% |
| 2025 | 38% | 26% | 127% | 97% | 89% | 74% | 158% | 70% | 96% | 116% | 105% | 31% |
130% or more: wet month 70% or less: dry month
Compare with the neighbours.
Hintere Tormäuer
Austria
- 722 mDepth
- 5.0 kmRim to rim
- —Length
- 46°Steepest wall
Where these figures come from
| Name, type, published depth and length | Wikidata (Q21871716) · 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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