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River

Aldan

2,273 km from source to mouth · Russia.

RussiaRussiaFlows into Lena River10th longest in Russia

Follow the riverMonth by month

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

In numbers

Length

2,273km

Average flow

5,100m³/s

Basin

729,000km²

Drop

1,228m

from 1,184 m to -44 m

Country

1

The journey

From source to mouth

2,273 km of river and 27 stops on the way: 1 towns and cities on its banks, dams, bridges and the tributaries that feed it.

1,184 m-44 m
Stanovoy Rangeat 1,184 m0 km
Ungratributary225 km
Tommot9,034 people574 km
Timptontributary635 km
Yungyuyoleetributary949 km
Uchur Rivertributary951 km
Mayatributary1,302 km
Allakh-Yuntributary1,370 km
Tyrytributary1,623 km
Amgatributary1,692 km
Keletributary2,012 km
Lena Riverat -44 m2,273 km
05001,0001,5002,0002,273 km
  1. 0 kmStanovoy Rangeat 1,184 m
  2. 225 kmUngratributary
  3. 257 kmAmedichi Rivertributary
  4. 297 kmMalyy Nimnyrtributary
  5. 305 kmChugatributary
  6. 309 kmBolshoy Nimnyrtributary
  7. 573 kmRailway bridge through Aldan river in Tommot
  8. 573 kmRoad bridge over Aldan River in Tommot
  9. 574 kmTommot9,034 people
  10. 635 kmTimptontributary
  11. 949 kmYungyuyoleetributary
  12. 951 kmUchur Rivertributary
  13. 1,150 kmBilirtributary
  14. 1,302 kmMayatributary
  15. 1,370 kmAllakh-Yuntributary
  16. 1,404 kmDzhyunekyantributary
  17. 1,432 kmNotoratributary
  18. 1,510 kmKuolumatributary
  19. 1,623 kmTyrytributary
  20. 1,646 kmEastern Khandygatributary
  21. 1,692 kmAmgatributary
  22. 1,703 kmTompotributary
  23. 1,810 kmTattatributary
  24. 1,835 kmBarayytributary
  25. 1,923 kmTukulantributary
  26. 1,934 kmTandatributary
  27. 2,012 kmKeletributary
  28. 2,051 kmTumaratributary
  29. 2,273 kmLena Riverat -44 m

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

River in Yakutia, Russia

At the mouth it carries 5,060 m³/s on average: 2.0 Olympic pools every second. It drops from 1,184 m to -44 m, 0.5 m per kilometre on average. Its basin covers 729,000 km², about the size of ZM. 215,000 people live in it. Highest water: from July to August; 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

  • TommotLargest city on its banks · 9,034 people
  • Chulman Airport (NER)Nearest airport with scheduled flights, 241 km from the city
  • On the water14 ferry piers, marinas, boat rentals and boat ramps along the river (OpenStreetMap)
  • From June to AugustThe best months to visit

Aldan, month by month

Highest water: from July to August

Lowest water: from January to April. Freezing months (average below −4 °C): from October to April. Best months to visit: from June to August.

190
-38°12 mmJan
190
-32°9 mmFeb
190
-20°9 mmMar
190
-6°15 mmApr
13,200
6°32 mmMay
15,700
15°54 mmJun
16,700
18°64 mmJul
17,900
15°63 mmAug
10,900
6°44 mmSep
8,200
-7°28 mmOct
5,300
-26°19 mmNov
2,300
-36°15 mmDec
Water (estimated flow)Air (average) Rain (mm)Best months

From about 190 m³/s in the lowest month to 17,900 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

Aldan: the basin in numbers

713,508 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.
  • 215,000people live in the basin
  • 0/km²people per km²
  • 698maverage altitude of the basin
  • 458mmof rain a year (basin average)
  • -10.6°Caverage air temperature
  • 12%protected areas
  • 0.1%covered by lakes
  • 94%permafrost

What covers the basin

  • 67% 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

Aldan: what you find on the way

  • 4Boat ramps
  • 10Ferry piers
  • 1River beaches

From OpenStreetMap, within 2.9 km of the river. Not mapped is not the same as not there.

From space

The source and the mouth, seen from orbit

Aldan: satellite view of the source
The source14 km across
Aldan: satellite view of the mouth
The mouth115 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

Aldan in pictures

Река Алдан в Томмоте
LxAndrew · CC BY-SA 3.0
Aldan River (near Dvortsy section, Siberia, Russia) 1 (21289548229)
James St. John · CC BY 2.0
Aldan River (near Dvortsy section, Siberia, Russia) 2 (21485056591)
James St. John · CC BY 2.0
Aldan river - река Алдан - panoramio
Svetlana Ivanova · CC BY 3.0

Tributaries

Where it flows, and what flows into it

Tributaries (31)

Also: Timpton, Tompo, Allakh-Yun, Amedichi River, Tatta, Tyry, Notora, Eastern Khandyga, Tumara, Barayy, Khanda, Tukulan, Kele, Yungyuyolee, Bolshoy Nimnyr, Bilir, Ungra, Kuoluma, Khamna, Mil', Chuga, Tanda, Dzhyunekyan, Khandyga

Where these numbers come from

Name, length, placesWikidata (Q191832) · 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

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