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River

Mamoré River

1,930 km from source to mouth · Brazil and Bolivia.

BrazilBoliviaBrazil and BoliviaFlows into Madeira River7th longest in Brazil

Follow the riverMonth by month

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

In numbers

Length

1,930km

Average flow

11,600m³/s

Basin

595,000km²

Drop

663m

from 767 m to 104 m

Countries

2

The journey

From source to mouth

1,930 km of river and 17 stops on the way: 4 towns and cities on its banks, dams, bridges and the tributaries that feed it.

767 m104 m
Sourceat 767 m0 km
Chapare Rivertributary490 km
Grande Rivertributary512 km
Ibare Rivertributary833 km
Yacuma Rivertributary1,103 km
Laguna Canarupo3.2 km²1,361 km
Cachuela Mayo Mayo1,378 km
Cachoeira das Bananeiras1,791 km
Madeira Riverat 104 m1,930 km
05001,0001,5001,930 km
  1. 0 kmSourceat 767 m
  2. 490 kmChapare Rivertributary
  3. 512 kmGrande Rivertributary
  4. 701 kmIsiboro Rivertributary
  5. 833 kmIbare Rivertributary
  6. 1,103 kmYacuma Rivertributary
  7. 1,361 kmLaguna Canarupo3.2 km²
  8. 1,378 kmCachuela Mayo Mayo
  9. 1,523 kmGuaporé Rivertributary
  10. 1,756 kmGuayaramerín36,008 people
  11. 1,759 kmIsla Suárez/Ilha de Guajará-Mirim
  12. 1,760 kmPuente Internacional del Río Mamoré
  13. 1,760 kmGuajará-Mirim47,451 people
  14. 1,761 kmGuajará Mirim46,556 people
  15. 1,791 kmCachoeira das Bananeiras
  16. 1,810 kmYata Rivertributary
  17. 1,815 kmCachoeira Pau Grande
  18. 1,820 kmCachoeira Lajes
  19. 1,930 kmMadeira Riverat 104 m

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

River in Bolivia & Brazil

At the mouth it carries 11,649 m³/s on average: 4.7 Olympic pools every second. It drops from 767 m to 104 m, 0.3 m per kilometre on average. Its basin covers 595,000 km², about the size of BW. 5.3 million people live in it. Highest water: from February to March; lowest: from July to October. No large dam holds it back: it is one of the world's free-flowing rivers.

Read more on Wikipedia

Where to start

Mamoré River, month by month

Highest water: from February to March

Lowest water: from July to October. Best months to visit: from June to August.

16,200
27°321 mmJan
18,900
27°281 mmFeb
19,300
27°248 mmMar
16,400
26°157 mmApr
12,100
25°106 mmMay
7,800
24°56 mmJun
4,400
24°40 mmJul
2,800
25°49 mmAug
2,600
27°87 mmSep
4,100
27°145 mmOct
7,200
27°207 mmNov
11,600
27°281 mmDec
Water (estimated flow)Air (average) Rain (mm)Best months

From about 2,600 m³/s in the lowest month to 19,300 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

Car hire at PVH airport (Porto Velho)Discover CarsSee 

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

Mamoré River: the basin in numbers

637,401 km² of land send their water to this river. This is what lives on it.

Free-flowingDams upstream can hold only 0.1% of a year's flow: the river still keeps its natural rhythm.
  • 5.3millionpeople live in the basin
  • 8/km²people per km²
  • 523maverage altitude of the basin
  • 1,446mmof rain a year (basin average)
  • 23.8°Caverage air temperature
  • 22%protected areas
  • 0.8%covered by lakes
  • 0.2km³held in reservoirs

What covers the basin

  • 62% Forest
  • 3% Cropland
  • 33% 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

Mamoré River: what you find on the way

  • 1WaterfallsCachoeira Guajará-Açu
  • 15Ferry piersPuerto Grether, Puerto Villarroel, Puerto Santa Isabel and 12 more

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

Cross-checked with our atlases

Mamoré 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
  • 1lake on its wayLakeyas

Waterfalls (4)

On the river, by Cascadyas

  1. Cachuela Mayo Mayokm 1,081
  2. Cachoeira das Bananeiraskm 1,405
  3. Cachoeira Pau Grandekm 1,424
  4. Cachoeira Lajeskm 1,428

Cascadyas is coming soonOpen Cascadyas ↗

Lakes and reservoirs (1)

Lakes it flows through, by Lakeyas

  1. Laguna Canarupokm 1,0683.2km²

Lakeyas is coming soonOpen Lakeyas ↗

From space

The source and the mouth, seen from orbit

Mamoré River: satellite view of the source
The source14 km across
Mamoré River: satellite view of the mouth
The mouth109 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

Mamoré River in pictures

RIO MAMORE
WPOLY · CC BY-SA 4.0
Atardecer en el rio Mamoré
Puya Raimondi · CC BY-SA 4.0
Rio Mamore - panoramio
Fernando Locatelli · CC BY 3.0
Rio Mamoré II, Bolivia
Yulacha · CC BY-SA 4.0

Tributaries

Where it flows, and what flows into it

It flows into

Madeira RiverBrazilBrazil1,450 km31,200 m³/s

Tributaries (10)

Guaporé RiverBrazilBrazil1,210 km1.5 m³/sjoins at km 1,195Grande RiverBoliviaBolivia820 km1,800 m³/sjoins at km 402

Also: Chapare River, Yacuma River, Yata River, Isiboro River, Apere River, Ibare River, Pacaás Novos River, Sotério River

In the same basin

Amazon RiverBrazilBrazil6,400 km209,000 m³/sRio NegroBrazilBrazil2,250 km30,000 m³/sMarañón RiverPeruPeru1,737 km16,700 m³/sUcayali RiverPeruPeru1,460 km12,600 m³/sJapurá RiverBrazilBrazil2,820 km13,900 m³/sXingu RiverBrazilBrazil1,640 km9,700 m³/sJuruá RiverBrazilBrazil3,100 km4,800 m³/sTapajós RiverBrazilBrazil1,930 km13,000 m³/sPutumayo RiverBrazilBrazil1,610 km7,000 m³/sPurus RiverBrazilBrazil2,960 km8.4 m³/s

Nearby

Rivers nearby

Beni RiverBoliviaBolivia1,100 km8.9 m³/s1 km awayMadre de Dios RiverBoliviaBolivia1,060 km4.9 m³/s102 km awayAbuna RiverBoliviaBolivia375 km750 m³/s78 km awayGuaporé RiverBrazilBrazil1,210 km1.5 m³/s173 km awayItonomas RiverBoliviaBolivia1,700 km670 m³/s262 km awayAcre RiverBrazilBrazil690 km610 m³/s285 km away

Where these numbers come from

Name, length, placesWikidata (Q117615) · 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 — 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