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River

Chu River

1,318 km from source to mouth · Kazakhstan and Kyrgyzstan.

KazakhstanKyrgyzstanKazakhstan and KyrgyzstanFlows into Akzhaykyn4th longest in Kazakhstan

Follow the riverMonth by month

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

In numbers

Length

1,318km

Average flow

130m³/s

Basin

67,500km²

Drop

2,827m

from 2,949 m to 122 m

Countries

2

The journey

From source to mouth

1,318 km of river and 20 stops on the way: 5 towns and cities on its banks, dams, bridges and the tributaries that feed it.

2,949 m122 m
Kyrgyz Alatauat 2,949 m0 km
Orto-Tokoy Reservoir20 km²124 km
Shamshy Rivertributary282 km
Tasotkel reservoir47 km²433 km
Kuragatytributary522 km
Kamkalykol7.6 km²777 km
Ozero Akkol'0.9 km²946 km
Ozero Aksuat1.4 km²961 km
Akzhaykynat 122 m1,318 km
05001,0001,318 km
  1. 0 kmKyrgyz Alatauat 2,949 m
  2. 91 kmKochkor Rivertributary
  3. 124 kmOrto-Tokoy Reservoir20 km²
  4. 207 kmChong-Kemin Rivertributary
  5. 226 kmKemin10,354 people
  6. 242 kmKichi-Kemin Rivertributary
  7. 266 kmTokmok71,443 people
  8. 282 kmShamshy Rivertributary
  9. 282 kmKegetytributary
  10. 288 kmIvanovka17,513 people
  11. 313 kmYsyk-Ata Rivertributary
  12. 334 kmKorday9,821 people
  13. 341 kmAla-Arçatributary
  14. 341 kmAlamüdün Rivertributary
  15. 427 kmAk-Suu Rivertributary
  16. 433 kmTasotkel reservoir47 km²
  17. 466 kmShu39,785 people
  18. 522 kmKuragatytributary
  19. 777 kmKamkalykol7.6 km²
  20. 946 kmOzero Akkol'0.9 km²
  21. 961 kmOzero Aksuat1.4 km²
  22. 1,318 kmAkzhaykynat 122 m

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

River in Kyrgyzstan and Kazakhstan

At the mouth it carries 130 m³/s on average: an Olympic pool every 19 seconds. It drops from 2,949 m to 122 m, 2.1 m per kilometre on average. Its basin covers 67,500 km², about the size of LK. 2.1 million people live in it. Highest water: from March to May; lowest: February and from July to September. Dams and reservoirs hold back a large share of its water (16% of a year's flow).

Read more on Wikipedia

Where to start

  • TokmokLargest city on its banks · 71,443 people
  • Manas International Airport (BSZ)Nearest airport with scheduled flights, 71 km from the cityCar hire at ALA airport (Almaty)Discover Cars · Affiliate link
  • On the water2 ferry piers, marinas, boat rentals and boat ramps along the river (OpenStreetMap)
  • Kayak and canoe1 put-ins and rapids mapped (OpenStreetMap)
  • From May to SeptemberThe best months to visit

Chu River, month by month

Highest water: from March to May

Lowest water: February and from July to September. Freezing months (average below −4 °C): from December to February. Best months to visit: from May to September.

120
-8°15 mmJan
64
-6°16 mmFeb
510
2°22 mmMar
530
11°32 mmApr
500
17°28 mmMay
190
22°17 mmJun
120
25°10 mmJul
84
23°7 mmAug
75
17°7 mmSep
130
9°20 mmOct
200
1°21 mmNov
170
-4°20 mmDec
Water (estimated flow)Air (average) Rain (mm)Best months

From about 64 m³/s in the lowest month to 530 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

Chu River: the basin in numbers

74,366 km² of land send their water to this river. This is what lives on it.

Heavily regulatedReservoirs can hold 16% of a year's flow: dams shape its seasons.
  • 2.1millionpeople live in the basin
  • 28/km²people per km²
  • 1,039maverage altitude of the basin
  • 289mmof rain a year (basin average)
  • 7.3°Caverage air temperature
  • 3%protected areas
  • 0.3%covered by lakes
  • 6%permafrost
  • 1.1km³held in reservoirs

What covers the basin

  • 1% Forest
  • 7% Cropland
  • 56% Pasture
  • 1% 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

Chu River: what you find on the way

  • 5DamsOrto-Tokoj reservoir dam and 4 more
  • 13Weirs
  • 1Locks
  • 1Canoe put-ins
  • 1Boat ramps
  • 1Boat rentals
  • 1River beaches

From OpenStreetMap, within 2.3 km of the river. Not mapped is not the same as not there.

Cross-checked with our atlases

Chu 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.

  • 5lakes on its wayLakeyas
  • 4mountains at the sourcePeakyas

Lakes and reservoirs (5)

Lakes it flows through, by Lakeyas

  1. Orto-Tokoy Reservoirkm 10420km²
  2. Tasotkel reservoirkm 36447km²
  3. Kamkalykolkm 6537.6km²
  4. Ozero Akkol'km 7950.9km²
  5. Ozero Aksuatkm 8081.4km²

Lakeyas is coming soonOpen Lakeyas ↗

Mountains at the source (4)

Within 15 km of the source, by Peakyas

  1. Gory Arsy15 km away
  2. Gory Aktjap13 km away
  3. Gora Kuusjoky12 km away
  4. Gory Aktasjkura11 km away

Open Peakyas ↗

From space

The source and the mouth, seen from orbit

Chu River: satellite view of the source
The source14 km across
Chu River: satellite view of the mouth
The mouth37 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

Chu River in pictures

E7840-Shu-city-river-crossing
Vmenkov · CC BY-SA 3.0

Tributaries

Where it flows, and what flows into it

Tributaries (12)

Also: Ala-Arça, Alamüdün River, Ak-Suu River, Kochkor River, Ysyk-Ata River, Kuragaty, Joon Aryk, Kichi-Kemin River, Shamshy River, Kegety, Yirgaity

Where these numbers come from

Name, length, placesWikidata (Q524206) · 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, 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