River
Nelson River
644 km from source to mouth · Canada.
CanadaFlows into Hudson Bay
In numbers
Length
644km
Average flow
2,800m³/s
Basin
1,093,442km²
Drop
215m
from 215 m to 0 m
Country
1
The journey
From source to mouth
644 km of river and 24 stops on the way: 0 towns and cities on its banks, dams, bridges and the tributaries that feed it.
- 0 kmLake Winnipegat 215 m
- 1 kmLake Winnipeg23,923 km²
- 48 kmPlaygreen Lake760 km²
- 71 kmSea River Falls
- 79 kmCarpenters Lake2.3 km²
- 86 kmSugar Falls
- 118 kmPipestone Lake39 km²
- 120 kmKichi Sipi Bridge
- 141 kmCross Lake286 km²
- 144 kmEves Falls
- 147 kmWhitemud Falls
- 235 kmSipiwesk Lake514 km²
- 253 kmWhitewater Falls
- 277 kmHunting Lake6.3 km²
- 308 kmGlossop Lake0.9 km²
- 336 kmPrud'homme Lake126 km²
- 337 kmGrass Rivertributary
- 343 kmBurntwood Rivertributary
- 389 kmSplit Lake281 km²
- 411 kmCarscadden Lake4.1 km²
- 428 kmGull Lake30 km²
- 432 kmJames James Lake0.7 km²
- 465 kmStephens Lake317 km²
- 502 kmLimestone Rivertributary
- 563 kmWeir Rivertributary
- 644 kmHudson Bayat 0 m
Water level along the river (RiverATLAS; the height is exaggerated). Towns: GeoNames and Wikidata; bridges, dams and tributaries: Wikidata.
River that flows from Lake Winnipeg to Hudson's Bay
At the mouth it carries 2,800 m³/s on average: 1.1 Olympic pools every second. It drops from 215 m to 0 m, 0.3 m per kilometre on average. Its basin covers 1,093,442 km², about the size of BO. 6.1 million people live in it. Highest water: from June to August; lowest: from January to April. It is heavily dammed: reservoirs can hold 120% of a year's flow.
Where to start
- Churchill Airport (YYQ)Nearest airport with scheduled flights, 215 km from the cityCar hire at YTH airport (Thompson)Discover Cars · Affiliate link↗
- On the water3 ferry piers, marinas, boat rentals and boat ramps along the river (OpenStreetMap)
- Kayak and canoe72 put-ins and rapids mapped (OpenStreetMap)
- From July to AugustThe best months to visit
Nelson River, month by month
Highest water: from June to August
Lowest water: from January to April. Freezing months (average below −4 °C): from November to March. Best months to visit: from July to August.
From about 2,600 m³/s in the lowest month to 3,000 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
Nelson River: the basin in numbers
1,004,347 km² of land send their water to this river. This is what lives on it.
- 6.1millionpeople live in the basin
- 6/km²people per km²
- 512maverage altitude of the basin
- 494mmof rain a year (basin average)
- 1.4°Caverage air temperature
- 10%protected areas
- 9.4%covered by lakes
- 2%permafrost
- 104km³held in reservoirs
What covers the basin
- 35% Forest
- 32% Cropland
- 11% Pasture
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
Nelson River: what you find on the way
- 1Waterfalls
- 72RapidsSugar Falls, High Hill Rapids, Eves Rapids and 69 more
- 3Ferry piersNorway House, Sea Falls, Split Lake
From OpenStreetMap, within 3.0 km of the river. Not mapped is not the same as not there.
Cross-checked with our atlases
Nelson 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.
5waterfalls on the riverCascadyas
14lakes on its wayLakeyas
Waterfalls (5)
On the river, by Cascadyas
- Sea River Fallskm 77
- Sugar Fallskm 94
- Eves Fallskm 157
- Whitemud Fallskm 160
- Whitewater Fallskm 274
Cascadyas is coming soonOpen Cascadyas ↗
Lakes and reservoirs (14)
Lakes it flows through, by Lakeyas
- Lake Winnipegkm 1 · 36 m deep23,923km²
- Playgreen Lakekm 52760km²
- Pipestone Lakekm 12839km²
- Cross Lakekm 153286km²
- Sipiwesk Lakekm 255514km²
- Prud'homme Lakekm 365126km²
- Split Lakekm 423281km²
- Stephens Lakekm 505317km²
6 more on LakeyasLakeyas is coming soonOpen Lakeyas ↗
From space
The source and the mouth, seen from orbit


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 (7)
Also: Burntwood River, Grass River, Limestone River, Boots Creek, Weir River, Leslie Creek
In the same basin
Where these numbers come from
| Name, length, places | Wikidata (Q3292) · CC0 |
|---|---|
| Course, profile, basin | RiverATLAS v1.0 (HydroATLAS, Linke et al. 2019) · CC BY 4.0 — followed from the source to the mouth given by Wikidata |
| Flow | WaterGAP (RiverATLAS), 1971–2000 · CC BY 4.0 |
| Climate along the river | WorldClim (RiverATLAS), 1970–2000 · CC BY 4.0 |
| Towns, bridges, dams | Wikidata · CC0; GeoNames · CC BY 4.0 |
| Along the river | © OpenStreetMap contributors · ODbL |
| Images | EOX Sentinel-2 cloudless 2016 · CC BY 4.0; Wikimedia Commons |
| Our other atlases | Cascadyas, Lakeyas — 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.