Slovakia Lodewicus de Honsvels · CC BY-SA 4.0
The cut
458 metres, to scale.
A slice through Jánošíkove diery 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: Big Ben · 96 m · Eiffel Tower · 330 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.
458m
Depth
measured on the 30 m relief model
8.8km
Rim to rim
measured on the 30 m relief model
30°
Steepest wall
average over 300 m, from the relief
520m
Floor altitude
Rim to floor
6 °C warmer at the bottom.
In August the afternoon reaches 23 °C on the floor, against 18 °C on the rim. The best months to hike are in June and from August to September. The rim freezes at night from November to April. The wettest months are from May to July.
- -1°-6°Jan
- 1°-5°Feb
- 6°0°Mar
- 13°7°Apr
- 18°12°May
- 21°16°Jun
- 23°18°Jul
- 23°18°Aug
- 18°13°Sep
- 12°7°Oct
- 7°1°Nov
- 1°-5°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 and canyon, Terchová in Žilina District, Slovakia
Jánošíkove diery is a canyon in Slovakia, cut by the Hlboký potok river. The relief model measures 458 m from the floor to the lower rim, and 845 m to the higher one. Rim to rim it is 8.8 km wide where the cut was taken. It lies within Rozsutec.
Getting there.
- Terchovánearest town · 3.3 km in a straight line
- Parking 240 m awaynearest car park in OpenStreetMap, straight line
- Viewpointsnearest viewpoint · 0.8 km from the floor
- Sliač Airport (SLD)nearest airport with scheduled flights · 68 km in a straight lineCar hire at OSR airport (Mošnov)Discover Cars · sponsored link↗
- In June and from August 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.
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
5 km
Sentinel-2 cloudless 2016 (EOX, CC BY 4.0), 20 × 20 km, north up. The line is the cut above. Points © OpenStreetMap contributors.
Around the canyon.
- 57viewpoints within 5 kmSokolie and 56 more
- 39marked hiking routes within 4 kmJánošíkovym chotárom (trasa A) and 38 more
- 67footbridges and suspension bridges within 3 km
- 4caves within 3 km
- 52car parks within 3 km
- 64information boards and visitor centres within 4 km
- 12bus stops within 2 km
- 2campsites within 8 kmCamping Belá Nižné Kamence
- 145hotels and guesthouses within 8 kmBoboty, Penzión Sagan, Penzión Solisko and 142 more
- 23restaurants 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
- Terchová3.3 km in a straight line
- Nová Bystrica11 km in a straight line
- Horný Vadičov13 km in a straight line
- Stará Bystrica14 km in a straight line
- Krasňany14 km in a straight line
- Turany15 km in a straight line
- Oravská Lesná15 km in a straight line
- Varín16 km in a straight line
In our other atlases
What else is around Jánošíkove diery.
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.
Cascadyas2 waterfalls nearbyComing soon
Peakyas62 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 | -1 | 1 | 6 | 13 | 18 | 21 | 23 | 23 | 18 | 12 | 7 | 1 |
| Afternoon · rim | -6 | -5 | 0 | 7 | 12 | 16 | 18 | 18 | 13 | 7 | 1 | -5 |
| Night · rim | -13 | -12 | -8 | -3 | 2 | 6 | 8 | 7 | 3 | -2 | -6 | -10 |
| Rain (mm) | 63 | 58 | 64 | 63 | 114 | 118 | 129 | 94 | 92 | 72 | 60 | 58 |
| Rainy days | 14 | 13 | 14 | 13 | 18 | 17 | 18 | 14 | 13 | 12 | 12 | 14 |
| Sun hours/day | 1.6 | 2.7 | 4.2 | 5.7 | 6.0 | 6.4 | 6.7 | 6.6 | 4.8 | 3.3 | 1.6 | 1.2 |
| Snow on the ground (cm) | 23 | 22 | 15 | 5 | 1 | 0 | 0 | 0 | 0 | 4 | 9 | 18 |
| Afternoon · floor | Afternoon · rim | Night · rim | Rain (mm) | Sun hours/day | |
|---|---|---|---|---|---|
| Jan | -1 | -6 | -13 | 63 | 1.6 |
| Feb | 1 | -5 | -12 | 58 | 2.7 |
| Mar | 6 | 0 | -8 | 64 | 4.2 |
| Apr | 13 | 7 | -3 | 63 | 5.7 |
| May | 18 | 12 | 2 | 114 | 6.0 |
| Jun | 21 | 16 | 6 | 118 | 6.4 |
| Jul | 23 | 18 | 8 | 129 | 6.7 |
| Aug | 23 | 18 | 7 | 94 | 6.6 |
| Sep | 18 | 13 | 3 | 92 | 4.8 |
| Oct | 12 | 7 | -2 | 72 | 3.3 |
| Nov | 7 | 1 | -6 | 60 | 1.6 |
| Dec | 1 | -5 | -10 | 58 | 1.2 |
Averages 1991–2020 (NASA POWER) for a cell about 55 km wide, brought to the floor (520 m) and the rim (1,365 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 | 50% | 188% | 74% | 33% | 122% | 149% | 89% | 95% | 138% | 222% | 56% | 74% |
| 2021 | 105% | 104% | 75% | 136% | 142% | 42% | 88% | 228% | 81% | 29% | 80% | 106% |
| 2022 | 121% | 124% | 47% | 121% | 49% | 59% | 115% | 98% | 132% | 51% | 61% | 135% |
| 2023 | 165% | 144% | 79% | 119% | 97% | 83% | 86% | 142% | 83% | 145% | 192% | 152% |
| 2024 | 157% | 127% | 87% | 138% | 61% | 123% | 63% | 71% | 159% | 71% | 60% | 49% |
| 2025 | 78% | 38% | 68% | 119% | 93% | 60% | 125% | 65% | 113% | 118% | 166% | 23% |
130% or more: wet month 70% or less: dry month
Compare with the neighbours.
Jánošíkove diery
Slovakia
- 458 mDepth
- 8.8 kmRim to rim
- —Length
- 30°Steepest wall
Where these figures come from
| Name, type, published depth and length | Wikidata (Q3507656) · CC0 |
|---|---|
| The cut: depth, width, wall and 3D model | Copernicus DEM GLO-30 · © DLR e.V., © Airbus Defence and Space GmbH, Copernicus/ESA |
| 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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