River
Abuna River
375 km from source to mouth · Bolivia and Brazil.
Bolivia and BrazilFlows into Madeira River6th longest in Bolivia
In numbers
Length
375km
Average flow
750m³/s
Basin
25,870km²
Drop
62m
from 153 m to 91 m
Countries
2
The journey
From source to mouth
375 km of river and 3 stops on the way: 1 towns and cities on its banks, dams, bridges and the tributaries that feed it.
- 0 kmSourceat 153 m
- 83 kmPlácido de Castro16,560 people
- 199 kmCachoeira do Barro
- 343 kmCachoeira Tambaqui (busay sa Bolivia)
- 375 kmMadeira Riverat 91 m
Water level along the river (RiverATLAS; the height is exaggerated). Towns: GeoNames and Wikidata; bridges, dams and tributaries: Wikidata.
River in the Amazon region
At the mouth it carries 753 m³/s on average: an Olympic pool every 3.3 seconds. It drops from 153 m to 91 m, 0.2 m per kilometre on average. Its basin covers 25,870 km², about the size of RW. 55,000 people live in it. Highest water: from January to March; lowest: from July to October. No large dam holds it back: it is one of the world's free-flowing rivers.
Where to start
- Plácido de CastroLargest city on its banks · 16,560 people
- Rio Branco-Plácido de Castro International Airport (RBR)Nearest airport with scheduled flights, 93 km from the cityCar hire at RBR airport (Rio Branco)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 June to AugustThe best months to visit
Abuna River, month by month
Highest water: from January to March
Lowest water: from July to October. Best months to visit: from June to August.
From about 290 m³/s in the lowest month to 1,400 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
Abuna River: the basin in numbers
32,053 km² of land send their water to this river. This is what lives on it.
- 55,000people live in the basin
- 2/km²people per km²
- 173maverage altitude of the basin
- 1,786mmof rain a year (basin average)
- 26.2°Caverage air temperature
- 2%protected areas
What covers the basin
- 92% Forest
- 1% Cropland
- 3% 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
Abuna River: what you find on the way
- 1Rapids
- 2Ferry piersAbunã
From OpenStreetMap, within 2.1 km of the river. Not mapped is not the same as not there.
Cross-checked with our atlases
Abuna 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.
2waterfalls on the riverCascadyas
Waterfalls (2)
On the river, by Cascadyas
- Cachoeira do Barrokm 200
- Cachoeira Tambaqui (busay sa Bolivia)km 345
Cascadyas is coming soonOpen Cascadyas ↗
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
Abuna River in pictures
Tributaries
Where it flows, and what flows into it
It flows into
Madeira RiverBrazil1,450 km31,200 m³/sTributaries (2)
Also: Chipamanu River, Río Negro
In the same basin
Brazil6,400 km209,000 m³/sRio NegroBrazil2,250 km30,000 m³/sMarañón River
Peru1,737 km16,700 m³/sUcayali RiverPeru1,460 km12,600 m³/sJapurá RiverBrazil2,820 km13,900 m³/sXingu RiverBrazil1,640 km9,700 m³/sMamoré RiverBrazil1,930 km11,600 m³/sJuruá RiverBrazil3,100 km4,800 m³/sTapajós RiverBrazil1,930 km13,000 m³/sPutumayo RiverBrazil1,610 km7,000 m³/sWhere these numbers come from
| Name, length, places | Wikidata (Q1477896) · 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 — 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.
beaches
Find your beach: sea temperature, sun and swimming month by month.Visit 
lakes
Every lake on Earth: water temperature, ice, depth and the shore.Coming soonVisit 
mountains
Every summit in 3D: summit weather, the 0 °C line, huts and trails.Visit waterfalls
Every waterfall: height, flow month by month and when it roars.Coming soonVisit 
islands
Every island from the sea up: size, sea temperature, ferries and 3D.Coming soonVisit 
rivers
Every river from source to sea: the journey, the flow and the basin in numbers.You are here
canyons
Every canyon cut to scale: depth to the floor, rim and floor temperatures, trails and viewpoints.Coming soonVisit