River
Aldan
2,273 km from source to mouth · Russia.
RussiaFlows into Lena River10th longest in Russia
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.
- 0 kmStanovoy Rangeat 1,184 m
- 225 kmUngratributary
- 257 kmAmedichi Rivertributary
- 297 kmMalyy Nimnyrtributary
- 305 kmChugatributary
- 309 kmBolshoy Nimnyrtributary
- 573 kmRailway bridge through Aldan river in Tommot
- 573 kmRoad bridge over Aldan River in Tommot
- 574 kmTommot9,034 people
- 635 kmTimptontributary
- 949 kmYungyuyoleetributary
- 951 kmUchur Rivertributary
- 1,150 kmBilirtributary
- 1,302 kmMayatributary
- 1,370 kmAllakh-Yuntributary
- 1,404 kmDzhyunekyantributary
- 1,432 kmNotoratributary
- 1,510 kmKuolumatributary
- 1,623 kmTyrytributary
- 1,646 kmEastern Khandygatributary
- 1,692 kmAmgatributary
- 1,703 kmTompotributary
- 1,810 kmTattatributary
- 1,835 kmBarayytributary
- 1,923 kmTukulantributary
- 1,934 kmTandatributary
- 2,012 kmKeletributary
- 2,051 kmTumaratributary
- 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.
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.
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
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The basin
Aldan: the basin in numbers
713,508 km² of land send their water to this river. This is what lives on it.
- 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


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




Tributaries
Where it flows, and what flows into it
It flows into
Lena RiverTributaries (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, places | Wikidata (Q191832) · 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 |
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.