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River

Thompson River

489 km from source to mouth · Canada.

CanadaCanadaFlows into Fraser River

Follow the riverMonth by month

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

In numbers

Length

489km

Average flow

770m³/s

Basin

56,000km²

Drop

441m

from 600 m to 159 m

Country

1

The journey

From source to mouth

489 km of river and 30 stops on the way: 10 towns and cities on its banks, dams, bridges and the tributaries that feed it.

600 m159 m
Sourceat 600 m0 km
Shuswap Falls50 km
Hidden Lake1.4 km²95 km
Rosemond Lake1.2 km²149 km
Mara Lake18 km²163 km
Shuswap Lake306 km²236 km
Little Shuswap Lake18 km²248 km
Kamloops97,902 people310 km
Kamloops Lake50 km²355 km
Bonaparte Rivertributary393 km
Murray Creek Falls437 km
Fraser Riverat 159 m489 km
0100200300400489 km
  1. 0 kmSourceat 600 m
  2. 0 kmRainbow Falls
  3. 19 kmSugar Lake22 km²
  4. 20 kmBrenda Falls
  5. 50 kmShuswap Falls
  6. 88 kmMabel Lake59 km²
  7. 95 kmHidden Lake1.4 km²
  8. 149 kmRosemond Lake1.2 km²
  9. 163 kmMara Lake18 km²
  10. 236 kmShuswap Lake306 km²
  11. 248 kmLittle Shuswap Lake18 km²
  12. 248 kmAylmer Lake0.9 km²
  13. 258 kmNiskonlith Lake4.0 km²
  14. 297 kmDallas4,479 people
  15. 303 kmJuniper Ridge4,151 people
  16. 308 kmSahali13,493 people
  17. 310 kmKamloops97,902 people
  18. 310 kmNorth Thompson Rivertributary
  19. 310 kmSouth Thompson Rivertributary
  20. 311 kmWest End3,443 people
  21. 311 kmOverlanders Bridge
  22. 313 kmNorth Kamloops10,995 people
  23. 313 kmBatchelor Hills3,685 people
  24. 316 kmBrocklehurst16,713 people
  25. 355 kmKamloops Lake50 km²
  26. 363 kmDeadman Rivertributary
  27. 393 kmBonaparte Rivertributary
  28. 395 kmAshcroft1,558 people
  29. 433 kmNicola Rivertributary
  30. 437 kmMurray Creek Falls
  31. 473 kmLytton249 people
  32. 489 kmFraser Riverat 159 m

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

River in British Columbia, Canada

At the mouth it carries 773 m³/s on average: an Olympic pool every 3.2 seconds. It drops from 600 m to 159 m, 0.9 m per kilometre on average. Its basin covers 56,000 km², about the size of HR. 189,000 people live in it. Highest water, with the snowmelt: from March to April; lowest: from January to February and from July to August. No large dam holds it back: it is one of the world's free-flowing rivers.

Read more on Wikipedia

Where to start

  • KamloopsLargest city on its banks · 97,902 people
  • Kamloops John Moose Fulton Field Regional Airport (YKA)Nearest airport with scheduled flights, 8 km from the cityCar hire at YKA airport (Kamloops)Discover Cars · Affiliate link
  • On the water25 ferry piers, marinas, boat rentals and boat ramps along the river (OpenStreetMap)
  • Kayak and canoe54 put-ins and rapids mapped (OpenStreetMap)
  • From June to SeptemberThe best months to visit

Thompson River, month by month

Highest water: from March to April

Lowest water: from January to February and from July to August. Freezing months (average below −4 °C): from December to January. Melting snow makes up much of its water. Best months to visit: from June to September.

520
-6°54 mmJan
270
-2°39 mmFeb
1,800
2°30 mmMar
1,700
7°28 mmApr
1,500
12°38 mmMay
610
15°47 mmJun
600
18°41 mmJul
590
18°41 mmAug
610
13°40 mmSep
680
7°38 mmOct
900
0°51 mmNov
700
-4°63 mmDec
Water (estimated flow)Air (average) Rain (mm)Best months

From about 270 m³/s in the lowest month to 1,800 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

Thompson River: the basin in numbers

55,417 km² of land send their water to this river. This is what lives on it.

Free-flowingDams upstream can hold only 0.6% of a year's flow: the river still keeps its natural rhythm.
  • 189,000people live in the basin
  • 4/km²people per km²
  • 1,251maverage altitude of the basin
  • 594mmof rain a year (basin average)
  • 3.0°Caverage air temperature
  • 13%protected areas
  • 2.9%covered by lakes
  • 1%glaciers
  • 2%permafrost
  • 0.2km³held in reservoirs

What covers the basin

  • 75% Forest
  • 1% Cropland
  • 5% Pasture
  • 1% Ice

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

Thompson River: what you find on the way

  • 7DamsSugar Lake Dam, Wilsey Dam and 5 more
  • 7WaterfallsRainbow Falls, Chase Creek Falls, Bridal Veil Falls and 4 more
  • 54RapidsBridge Rapids, Slough Rapids, Second Bridge Rapids and 51 more
  • 17Boat rampsBristow Road Boat Launch, Valleyview Boat Launch, Pioneer Park Boat Launch and 14 more
  • 5Ferry piers
  • 2MarinasSicamous Houseboats, Bruker Marina on Kamloops Lake
  • 1Boat rentals
  • 11River beachesPublic Beach, Nielsen Beach, Musicians Beach and 8 more

From OpenStreetMap, within 2.2 km of the river. Not mapped is not the same as not there.

Cross-checked with our atlases

Thompson 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.

  • 4waterfalls on the riverCascadyas
  • 10lakes on its wayLakeyas
  • 13mountains at the sourcePeakyas

Waterfalls (4)

On the river, by Cascadyas

  1. Rainbow Fallskm 0
  2. Brenda Fallskm 19
  3. Shuswap Fallskm 49
  4. Murray Creek Fallskm 426

Cascadyas is coming soonOpen Cascadyas ↗

Lakes and reservoirs (10)

Lakes it flows through, by Lakeyas

  1. Sugar Lakekm 1922km²
  2. Mabel Lakekm 8659km²
  3. Hidden Lakekm 921.4km²
  4. Mara Lakekm 15918km²
  5. Shuswap Lakekm 231 · 161 m deep306km²
  6. Little Shuswap Lakekm 24218km²
  7. Niskonlith Lakekm 2524.0km²
  8. Kamloops Lakekm 34650km²

2 more on LakeyasLakeyas is coming soonOpen Lakeyas ↗

Mountains at the source (13)

Within 15 km of the source, by Peakyas

  1. Paul Peak2.7 km away527m
  2. Batchelor Hill7.8 km away
  3. Edith Hill12 km away
  4. Strawberry Hill14 km away
  5. Mara Hill11 km away
  6. Sugarloaf Hill10 km away
  7. Ironmask Hill8.1 km away
  8. Coal Hill6.1 km away

5 more on PeakyasOpen Peakyas ↗

From space

The source and the mouth, seen from orbit

Thompson River: satellite view of the source
The source14 km across
Thompson River: satellite view of the mouth
The mouth32 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

Thompson River in pictures

Fraser joins Thompson River at Lytton
The Interior · CC BY-SA 4.0
Thomson Frasier Confluence Lytton
Cash4alex · CC BY-SA 3.0
N Thompson River bridge
Rufus Hawthorne · CC BY-SA 4.0
SouthThompson
The Interior · CC BY-SA 4.0

Tributaries

Where it flows, and what flows into it

Tributaries (6)

Also: Nicola River, Bonaparte River, North Thompson River, Deadman River, South Thompson River, Nicoamen River

Where these numbers come from

Name, length, placesWikidata (Q2143805) · 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