River
Itonomas River
1,700 km from source to mouth · Bolivia.
BoliviaFlows into Machupo River1st longest in Bolivia
In numbers
Length
1,700km
Average flow
670m³/s
Basin
123,853km²
Drop
2,179m
from 2,311 m to 132 m
Country
1
The journey
From source to mouth
1,700 km of river and 2 stops on the way: 1 towns and cities on its banks, dams, bridges and the tributaries that feed it.
- 0 kmSourceat 2,311 m
- 202 kmCamiri27,961 people
- 621 kmParapetí Rivertributary
- 1,700 kmMachupo Riverat 132 m
Water level along the river (RiverATLAS; the height is exaggerated). Towns: GeoNames and Wikidata; bridges, dams and tributaries: Wikidata.
River in Bolivia
At the mouth it carries 671 m³/s on average: an Olympic pool every 3.7 seconds. It drops from 2,311 m to 132 m, 1.3 m per kilometre on average. Its basin covers 123,853 km², about the size of ER. 231,000 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.
Where to start
- CamiriLargest city on its banks · 27,961 people
- Alcantarí International Airport (SRE)Nearest airport with scheduled flights, 192 km from the cityCar hire at SRE airport (Sucre)Discover Cars · Affiliate link↗
- On the water4 ferry piers, marinas, boat rentals and boat ramps along the river (OpenStreetMap)
- From May to SeptemberThe best months to visit
Itonomas River, month by month
Highest water: from February to March
Lowest water: from July to October. Best months to visit: from May to September.
From about 230 m³/s in the lowest month to 1,600 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
Itonomas River: the basin in numbers
106,434 km² of land send their water to this river. This is what lives on it.
- 231,000people live in the basin
- 2/km²people per km²
- 407maverage altitude of the basin
- 964mmof rain a year (basin average)
- 24.3°Caverage air temperature
- 16%protected areas
- 0.3%covered by lakes
What covers the basin
- 65% Forest
- 6% Cropland
- 26% 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
Itonomas River: what you find on the way
- 1Waterfalls
- 4Ferry piers
From OpenStreetMap, within 2.4 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.
Tributaries
Where it flows, and what flows into it
Tributaries (2)
Also: Parapetí River, Quizer River
In the same basin
Nearby
Rivers nearby
Where these numbers come from
| Name, length, places | Wikidata (Q1451369) · CC0 |
|---|---|
| Course, profile, basin | RiverATLAS v1.0 (HydroATLAS, Linke et al. 2019) · CC BY 4.0 — followed along the river network from the point 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.