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River

Grande River

820 km from source to mouth · Bolivia.

BoliviaBoliviaFlows into Mamoré River4th longest in Bolivia

Follow the riverMonth by month

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

In numbers

Length

820km

Average flow

1,800m³/s

Basin

101,900km²

Drop

1,490m

from 1,659 m to 169 m

Country

1

The journey

From source to mouth

820 km of river and 9 stops on the way: 0 towns and cities on its banks, dams, bridges and the tributaries that feed it.

1,659 m169 m
Sourceat 1,659 m0 km
Mizque Rivertributary145 km
Pailas Bridge456 km
Pailas Lake11 km²679 km
Mamoré Riverat 169 m820 km
0200400600820 km
  1. 0 kmSourceat 1,659 m
  2. 1 kmCaine Rivertributary
  3. 1 kmSan Pedro Rivertributary
  4. 145 kmMizque Rivertributary
  5. 456 kmPailas Bridge
  6. 679 kmPailas Lake11 km²
  7. 696 kmEspaña Lake27 km²
  8. 733 kmTejas Lake5.6 km²
  9. 747 kmYapacaní Rivertributary
  10. 758 kmLaguna de Palmira50 km²
  11. 820 kmMamoré Riverat 169 m

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

Right tributary of the Marmoré River in Bolivia

At the mouth it carries 1,805 m³/s on average: an Olympic pool every 1.4 seconds. It drops from 1,659 m to 169 m, 1.8 m per kilometre on average. Its basin covers 101,900 km², about the size of CS. 4.2 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

Grande River, month by month

Highest water: from February to March

Lowest water: from July to October. Best months to visit: from May to September.

2,900
25°190 mmJan
3,500
25°160 mmFeb
3,600
25°130 mmMar
2,900
23°73 mmApr
2,100
21°50 mmMay
1,300
20°40 mmJun
820
20°26 mmJul
630
21°30 mmAug
580
24°41 mmSep
690
25°64 mmOct
1,200
25°111 mmNov
2,000
26°159 mmDec
Water (estimated flow)Air (average) Rain (mm)Best months

From about 580 m³/s in the lowest month to 3,600 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

Grande River: the basin in numbers

126,602 km² of land send their water to this river. This is what lives on it.

Free-flowingDams upstream can hold only 0.2% of a year's flow: the river still keeps its natural rhythm.
  • 4.2millionpeople live in the basin
  • 33/km²people per km²
  • 1,464maverage altitude of the basin
  • 1,237mmof rain a year (basin average)
  • 20.1°Caverage air temperature
  • 12%protected areas
  • 0.4%covered by lakes
  • 0.1km³held in reservoirs

What covers the basin

  • 48% Forest
  • 5% Cropland
  • 25% 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

Grande River: what you find on the way

  • 1River beachesPlaya de Lodo

From OpenStreetMap, within 2.5 km of the river. Not mapped is not the same as not there.

Cross-checked with our atlases

Grande 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.

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

Lakes and reservoirs (4)

Lakes it flows through, by Lakeyas

  1. Pailas Lakekm 80611km²
  2. España Lakekm 82727km²
  3. Tejas Lakekm 8725.6km²
  4. Laguna de Palmirakm 90150km²

Lakeyas is coming soonOpen Lakeyas ↗

Mountains at the source (4)

Within 15 km of the source, by Peakyas

  1. Cerro Cajcha Punta8.4 km away3,094m
  2. Cerro Alizo Punta8.3 km away2,977m
  3. Cerro Horno Khasa14 km away2,491m
  4. Chupa Loma8.5 km away2,372m

Open Peakyas ↗

From space

The source and the mouth, seen from orbit

Grande River: satellite view of the source
The source14 km across
Grande River: satellite view of the mouth
The mouth49 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

Grande River in pictures

Where these numbers come from

Name, length, placesWikidata (Q1519602) · 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