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River

Vefsna

163 km from source to mouth · Norway.

NorwayNorwayFlows into Vefsnfjord9th longest in Norway

Follow the riverMonth by month

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

In numbers

Length

163km

Average flow

210m³/s

Basin

4,122km²

Drop

598m

from 603 m to 5 m

Country

1

The journey

From source to mouth

163 km of river and 41 stops on the way: 1 towns and cities on its banks, dams, bridges and the tributaries that feed it.

603 m5 m
Unkerelvaat 603 m0 km
Guoutelisjauretje0.5 km²16 km
Bleriken0.7 km²34 km
Nedre Vapstsjön2.3 km²39 km
Trongelvforsen55 km
Trøforsen59 km
Troforsen77 km
Hattfjellforsen91 km
Gabpenjaevrie0.7 km²104 km
Fellingforsen128 km
Dalforsen135 km
Vefsnfjordat 5 m163 km
050100163 km
  1. 0 kmUnkerelvaat 603 m
  2. 0 kmKroksjön0.5 km²
  3. 0 kmGårmsjön0.4 km²
  4. 16 kmGuoutelisjauretje0.5 km²
  5. 20 kmBåtsjön1.5 km²
  6. 22 kmVirisen28 km²
  7. 27 kmJärvoken1.4 km²
  8. 29 kmÖvre Vapstsjön2.4 km²
  9. 34 kmBleriken0.7 km²
  10. 39 kmNedre Vapstsjön2.3 km²
  11. 43 kmSkalvattnet4.4 km²
  12. 53 kmForsen
  13. 54 kmElvengforsen
  14. 54 kmDurriejaevrie2.0 km²
  15. 55 kmTrongelvforsen
  16. 56 kmLilleforsen
  17. 56 kmVakkermoforsen
  18. 58 kmGranholmforsen
  19. 59 kmTrøforsen
  20. 60 kmAspnesforsen
  21. 61 kmLangskjerforsen
  22. 67 kmHolmvatnet0.3 km²
  23. 72 kmUnkervatnet14 km²
  24. 74 kmStorforsen
  25. 77 kmTroforsen
  26. 79 kmTrangforsen
  27. 79 kmKvernhusforsen
  28. 91 kmHattfjellforsen
  29. 92 kmVriomforsen
  30. 92 kmFisklausforsen
  31. 93 kmMjølkarliforsen
  32. 104 kmGabpenjaevrie0.7 km²
  33. 124 kmBåfjellmo bridge
  34. 124 kmTrofors bridge
  35. 128 kmFellingforsen
  36. 135 kmDalforsen
  37. 136 kmLaksforsen
  38. 146 kmØvre Ravatnan0.3 km²
  39. 151 kmStorbjørnvatnet0.3 km²
  40. 161 kmØybrua
  41. 162 kmØya bridge
  42. 162 kmMosjøen9,636 people
  43. 163 kmVefsnfjordat 5 m

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

River in Grane, Hattfjelldal and Vefsn, Norway

At the mouth it carries 207 m³/s on average: an Olympic pool every 12 seconds. It drops from 603 m to 5 m, 3.7 m per kilometre on average. Its basin covers 4,122 km², about the size of CV. 5,855 people live in it. Highest water, with the snowmelt: May; lowest: from December to March. No large dam holds it back: it is one of the world's free-flowing rivers.

Read more on Wikipedia

Where to start

  • MosjøenLargest city on its banks · 9,636 people
  • Mosjøen Airport, Kjærstad (MJF)Nearest airport with scheduled flights, 6 km from the cityCar hire at MJF airport (Mosjøen)Discover Cars · Affiliate link
  • On the water1 ferry piers, marinas, boat rentals and boat ramps along the river (OpenStreetMap)
  • Kayak and canoe2 put-ins and rapids mapped (OpenStreetMap)
  • From July to AugustThe best months to visit

Vefsna, month by month

Highest water: May

Lowest water: from December to March. Melting snow makes up much of its water. Best months to visit: from July to August.

64
-4°163 mmJan
40
-4°124 mmFeb
40
-2°136 mmMar
340
2°97 mmApr
630
6°77 mmMay
370
10°105 mmJun
220
12°124 mmJul
170
12°125 mmAug
240
8°174 mmSep
310
5°196 mmOct
300
0°148 mmNov
140
-3°179 mmDec
Water (estimated flow)Air (average) Rain (mm)Best months

From about 40 m³/s in the lowest month to 630 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

Vefsna: the basin in numbers

4,121 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.
  • 5,855people live in the basin
  • 1/km²people per km²
  • 638maverage altitude of the basin
  • 1,400mmof rain a year (basin average)
  • 1.5°Caverage air temperature
  • 24%protected areas
  • 4.3%covered by lakes
  • 4%permafrost

What covers the basin

  • 48% Forest

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

Vefsna: what you find on the way

  • 1Weirslaksetrapp
  • 24WaterfallsForsen, Elvengforsen, Trongelvforsen and 21 more
  • 2RapidsTroforsen, Gammeljordstryket
  • 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

Vefsna 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.

  • 20waterfalls on the riverCascadyas
  • 16lakes on its wayLakeyas
  • 150mountains at the sourcePeakyas

Waterfalls (20)

On the river, by Cascadyas

  1. Trongelvforsenkm 54
  2. Hattfjellforsenkm 88
  3. Vriomforsenkm 89
  4. Fisklausforsenkm 89
  5. Mjølkarliforsenkm 90
  6. Fellingforsenkm 123
  7. Dalforsenkm 130
  8. Laksforsenkm 131

12 more on CascadyasCascadyas is coming soonOpen Cascadyas ↗

Lakes and reservoirs (16)

Lakes it flows through, by Lakeyas

  1. Båtsjönkm 201.5km²
  2. Virisenkm 2128km²
  3. Övre Vapstsjönkm 282.4km²
  4. Nedre Vapstsjönkm 372.3km²
  5. Skalvattnetkm 424.4km²
  6. Unkervatnetkm 6914km²
  7. Øvre Ravatnankm 1410.3km²
  8. Storbjørnvatnetkm 1450.3km²

8 more on LakeyasLakeyas is coming soonOpen Lakeyas ↗

Mountains at the source (150)

Within 15 km of the source, by Peakyas

  1. Blåfjellet13 km away · prominence 980 m1,292m
  2. Nonstindan13 km away863m
  3. Ramnåfjellet13 km away740m
  4. Krokmyrlia12 km away
  5. Berntlia12 km away
  6. Nordmyrlia8.4 km away
  7. Steinbukklia7.7 km away
  8. Almvasslia2.9 km away

142 more on PeakyasOpen Peakyas ↗

From space

The source and the mouth, seen from orbit

Vefsna: satellite view of the source
The source14 km across
Vefsna: 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.

Photos

Vefsna in pictures

Vefsna, Mosjøen, Helgeland, Nordland, Norway - panoramio
trolvag · CC BY-SA 3.0

Tributaries

Where it flows, and what flows into it

Tributaries (1)

Also: Skjervo

Where these numbers come from

Name, length, placesWikidata (Q180550) · CC0
Course, profile, basinRiverATLAS v1.0 (HydroATLAS, Linke et al. 2019) · CC BY 4.0 — followed from the source to the mouth 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, Lakeyas, 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