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River

Back River

974 km from source to mouth · Canada.

CanadaCanadaFlows into Chantrey Inlet

Follow the riverMonth by month

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

In numbers

Length

974km

Average flow

750m³/s

Basin

106,500km²

Drop

414m

from 351 m to -63 m

Country

1

The journey

From source to mouth

974 km of river and 12 stops on the way: 0 towns and cities on its banks, dams, bridges and the tributaries that feed it.

351 m-63 m
Sourceat 351 m0 km
Gold Lake24 km²75 km
Pelly Lake206 km²463 km
Garry Lake452 km²509 km
Upper Macdougall Lake104 km²612 km
Franklin Lake411 km²893 km
Chantrey Inletat -63 m974 km
0200400600800974 km
  1. 0 kmSourceat 351 m
  2. 28 kmMuskox Lake57 km²
  3. 40 kmJim Magrum Lake15 km²
  4. 61 kmEastring Lake0.5 km²
  5. 75 kmGold Lake24 km²
  6. 79 kmFidler Lake23 km²
  7. 100 kmNauna Lake3.7 km²
  8. 463 kmPelly Lake206 km²
  9. 509 kmGarry Lake452 km²
  10. 558 kmBuliard Lake65 km²
  11. 612 kmUpper Macdougall Lake104 km²
  12. 893 kmFranklin Lake411 km²
  13. 896 kmHayes Rivertributary
  14. 974 kmChantrey Inletat -63 m

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

River in the Northwest Territories and Nunavut in Canada

At the mouth it carries 754 m³/s on average: an Olympic pool every 3.3 seconds. It drops from 351 m to -63 m, 0.4 m per kilometre on average. Its basin covers 106,500 km², about the size of GT. Highest water, with the snowmelt: from July to September; lowest: from January to April. No large dam holds it back: it is one of the world's free-flowing rivers.

Read more on Wikipedia

Where to start

  • Gjoa HavenLargest city on its banks · 1,349 people
  • Kayak and canoe354 put-ins and rapids mapped (OpenStreetMap)
  • From July to AugustThe best months to visit

Back River, month by month

Highest water: from July to September

Lowest water: from January to April. Freezing months (average below −4 °C): from October to May. Melting snow makes up much of its water. Best months to visit: from July to August.

410
-34°6 mmJan
410
-33°5 mmFeb
410
-29°6 mmMar
410
-19°10 mmApr
410
-7°12 mmMay
1,100
3°18 mmJun
1,200
9°32 mmJul
1,200
8°35 mmAug
1,300
1°28 mmSep
750
-8°22 mmOct
640
-21°11 mmNov
510
-29°7 mmDec
Water (estimated flow)Air (average) Rain (mm)Best months

From about 410 m³/s in the lowest month to 1,300 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

Back River: the basin in numbers

118,550 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.
  • 238maverage altitude of the basin
  • 206mmof rain a year (basin average)
  • -13.6°Caverage air temperature
  • 12%protected areas
  • 12.7%covered by lakes
  • 100%permafrost

What covers the basin

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

Back River: what you find on the way

  • 354RapidsWhirlpool Rapids and 353 more

From OpenStreetMap, within 2.4 km of the river. Not mapped is not the same as not there.

Cross-checked with our atlases

Back River 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.

  • 11lakes on its wayLakeyas

Lakes and reservoirs (11)

Lakes it flows through, by Lakeyas

  1. Muskox Lakekm 3157km²
  2. Gold Lakekm 8424km²
  3. Fidler Lakekm 8923km²
  4. Pelly Lakekm 520206km²
  5. Garry Lakekm 572452km²
  6. Buliard Lakekm 62765km²
  7. Upper Macdougall Lakekm 689104km²
  8. Franklin Lakekm 1,004411km²

3 more on LakeyasLakeyas is coming soonOpen Lakeyas ↗

From space

The source and the mouth, seen from orbit

Back River: satellite view of the source
The source14 km across
Back River: satellite view of the mouth
The mouth47 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

Back River in pictures

Tributaries

Where it flows, and what flows into it

Tributaries (3)

Also: Hayes River, Meadowbank River, Contwoyto River

Where these numbers come from

Name, length, placesWikidata (Q798339) · 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 atlasesLakeyas — 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