Skip to content
riveryas
EN

River

Eisack

100 km from source to mouth · Italy.

ItalyItalyFlows into Adige

Follow the riverMonth by month

SourceMouth
The river and every tributary in its basin, drawn from RiverATLAS (CC BY 4.0).

In numbers

Length

100km

Average flow

78m³/s

Basin

4,202km²

Drop

899m

from 1,136 m to 237 m

Country

1

The journey

From source to mouth

100 km of river and 30 stops on the way: 24 towns and cities on its banks, dams, bridges and the tributaries that feed it.

1,136 m237 m
Brenner Passat 1,136 m0 km
Monguelfo1,450 people9 km
Riscone1,602 people22 km
Brunico12,282 people24 km
Cascate di Vandoies42 km
Vandoies - Vintl3,108 people42 km
Bressanone15,868 people58 km
Rienztributary58 km
Villnößer Bachtributary74 km
Derjontributary74 km
Adigeat 237 m100 km
020406080100 km
  1. 0 kmBrenner Passat 1,136 m
  2. 0 kmDobbiaco2,373 people
  3. 3 kmVillabassa1,390 people
  4. 9 kmMonguelfo1,450 people
  5. 15 kmRasun Anterselva - Rasen-Antholz2,700 people
  6. 15 kmValdaora di Mezzo1,668 people
  7. 22 kmRiscone1,602 people
  8. 24 kmBrunico12,282 people
  9. 27 kmSan Lorenzo di Sebato1,221 people
  10. 37 kmTerento1,121 people
  11. 42 kmCascate di Vandoies
  12. 42 kmVandoies - Vintl3,108 people
  13. 45 kmRodengo1,170 people
  14. 47 kmRio di Pusteria1,151 people
  15. 49 kmNaz-Sciaves - Natz-Schabs2,430 people
  16. 50 kmRodengo - Rodeneck1,157 people
  17. 57 kmLeone-Santa Elisabetta1,041 people
  18. 58 kmBressanone15,868 people
  19. 58 kmRienztributary
  20. 66 kmVelturno1,300 people
  21. 69 kmChiusa2,497 people
  22. 71 kmVillandro - Villanders1,830 people
  23. 74 kmVillnößer Bachtributary
  24. 74 kmDerjontributary
  25. 75 kmBarbiano - Barbian1,520 people
  26. 78 kmTörggele bridge
  27. 83 kmCollalbo1,733 people
  28. 83 kmFiè Allo Sciliar1,316 people
  29. 96 kmTalfertributary
  30. 97 kmBolzano107,436 people
  31. 100 kmSan Giacomo3,404 people
  32. 100 kmAdigeat 237 m

Water level along the river (RiverATLAS; the height is exaggerated). Towns: GeoNames and Wikidata; bridges, dams and tributaries: Wikidata.

River in Northern Italy

At the mouth it carries 78 m³/s on average: an Olympic pool every 32 seconds. It drops from 1,136 m to 237 m, 9.0 m per kilometre on average. Its basin covers 4,202 km², about the size of CV. 245,000 people live in it. Highest water: March; lowest: from December to February. No large dam holds it back: it is one of the world's free-flowing rivers.

Read more on Wikipedia

Where to start

  • BolzanoLargest city on its banks · 107,436 people
  • Bolzano Airport (BZO)Nearest airport with scheduled flights, 4 km from the cityCar hire at BZO airport (Bolzano)Discover Cars · Affiliate link
  • On the water1 ferry piers, marinas, boat rentals and boat ramps along the river (OpenStreetMap)
  • From June to SeptemberThe best months to visit

Eisack, month by month

Highest water: March

Lowest water: from December to February. Best months to visit: from June to September.

22
-3°34 mmJan
13
-1°34 mmFeb
150
3°42 mmMar
120
7°56 mmApr
110
11°86 mmMay
110
15°98 mmJun
130
17°114 mmJul
130
16°111 mmAug
110
14°78 mmSep
100
8°66 mmOct
100
2°64 mmNov
49
-2°36 mmDec
Water (estimated flow)Air (average) Rain (mm)Best months

From about 13 m³/s in the lowest month to 150 m³/s in the highest. An estimate: the monthly flow is modelled from the lowest and highest months of WaterGAP (RiverATLAS, 1971–2000) and the rain and snow along the river (WorldClim). Dams change the real rhythm. The chip is the average air temperature; below it, the month's rain.

Plan the trip

Plan the trip: boat trips, a bed by the river, 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 basin

Eisack: the basin in numbers

4,193 km² of land send their water to this river. This is what lives on it.

Free-flowingDams upstream can hold only 0.0% of a year's flow: the river still keeps its natural rhythm.
  • 245,000people live in the basin
  • 60/km²people per km²
  • 1,748maverage altitude of the basin
  • 974mmof rain a year (basin average)
  • 3.0°Caverage air temperature
  • 16%protected areas
  • 5%permafrost

What covers the basin

  • 74% Forest
  • 8% Cropland
  • 4% Pasture
  • 2% Towns and cities

RiverATLAS (HydroATLAS v1.0, CC BY 4.0): land cover, people, protected areas, glaciers and dams over the whole basin upstream of the mouth.

Along the river

Eisack: what you find on the way

  • 12DamsStaumauer Mühlbach - Diga di Rio di Pusteria and 11 more
  • 215Weirs
  • 17WaterfallsUnterer Barbianer Wasserfall and 16 more
  • 1Boat ramps

From OpenStreetMap, within 1.6 km of the river. Not mapped is not the same as not there.

Cross-checked with our atlases

Eisack in our other atlases

What our sister atlases know about the waterfalls on this river, the lakes it flows through, the beaches at its mouth, the mountains where it rises and the islands off its mouth.

  • 1waterfall on the riverCascadyas
  • 54mountains at the sourcePeakyas

Waterfalls (1)

On the river, by Cascadyas

  1. Cascate di Vandoieskm 45

Cascadyas is coming soonOpen Cascadyas ↗

Mountains at the source (54)

Within 15 km of the source, by Peakyas

  1. Dolomites13 km away3,343m
  2. Hohe Gaisl12 km away · prominence 1,133 m3,146m
  3. Dreischusterspitze10 km away · prominence 1,393 m3,145m
  4. Birkenkofel5.9 km away · prominence 391 m2,922m
  5. Haunold6.4 km away · prominence 677 m2,966m
  6. Große Zinne14 km away2,999m
  7. Paternkofel13 km away · prominence 225 m2,744m
  8. Seekofel12 km away · prominence 756 m2,810m

46 more on PeakyasOpen Peakyas ↗

From space

The source and the mouth, seen from orbit

Eisack: satellite view of the source
The source14 km across
Eisack: satellite view of the mouth
The mouth10 km across

Sentinel-2 cloudless 2016 by EOX IT Services GmbH (contains modified Copernicus Sentinel data 2016), CC BY 4.0. The glowing line is the river as drawn by RiverATLAS.

Tributaries

Where it flows, and what flows into it

Tributaries (10)

Also: Talfer, Derjon, Ridnauner Bach, Villnößer Bach, Pfitscher Bach, Pflerscher Bach, Braibach, Eggentaler Bach, Rio Rivellone

Where these numbers come from

Name, length, placesWikidata (Q596901) · CC0
Course, profile, basinRiverATLAS v1.0 (HydroATLAS, Linke et al. 2019) · CC BY 4.0 — followed along the river network from the point given by Wikidata
FlowWaterGAP (RiverATLAS), 1971–2000 · CC BY 4.0
Climate along the riverWorldClim (RiverATLAS), 1970–2000 · CC BY 4.0
Towns, bridges, damsWikidata · CC0; GeoNames · CC BY 4.0
Along the river© OpenStreetMap contributors · ODbL
ImagesEOX Sentinel-2 cloudless 2016 · CC BY 4.0; Wikimedia Commons
Our other atlasesCascadyas, Peakyas — Wikidata · CC0; © OpenStreetMap contributors · ODbL; GeoNames · CC BY 4.0; HydroLAKES · CC BY 4.0; NOAA OISST

Every source and licence is on the data sources page.

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.Coming soonVisit
riversRiveryasEvery river from source to sea: the journey, the flow and the basin in numbers.You are here
canyonsCanyonyasEvery canyon cut to scale: depth to the floor, rim and floor temperatures, trails and viewpoints.Coming soonVisit