River
Utamboni River
141 km from source to mouth · Equatorial Guinea.
Equatorial Guinea3rd longest in Equatorial Guinea
In numbers
Length
141km
Average flow
340m³/s
Basin
6,333km²
Drop
592m
from 598 m to 6 m
Country
1
The journey
From source to mouth
141 km of river and 4 stops on the way: 0 towns and cities on its banks, dams, bridges and the tributaries that feed it.
- 0 kmSourceat 598 m
- 61 kmCascada Minguo
- 72 kmCascada Cuakigui
- 73 kmCascada Alar
- 96 kmCascada Enue
- 141 kmMouthat 6 m
Water level along the river (RiverATLAS; the height is exaggerated). Towns: GeoNames and Wikidata; bridges, dams and tributaries: Wikidata.
River in Equatorial Guinea
At the mouth it carries 342 m³/s on average: an Olympic pool every 7.3 seconds. It drops from 598 m to 6 m, 4.2 m per kilometre on average. Its basin covers 6,333 km², about the size of PS. 46,000 people live in it. Highest water: from November to December; lowest: from July to September. No large dam holds it back: it is one of the world's free-flowing rivers.
Where to start
- CogoLargest city on its banks · 4,607 people
- Corisco International Airport (OCS)Nearest airport with scheduled flights, 45 km from the cityCar hire at LBV airport (Libreville)Discover Cars · Affiliate link↗
- From June to AugustThe best months to visit
Utamboni River, month by month
Highest water: from November to December
Lowest water: from July to September. Best months to visit: from June to August.
From about 99 m³/s in the lowest month to 700 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
Utamboni River: the basin in numbers
6,333 km² of land send their water to this river. This is what lives on it.
- 46,000people live in the basin
- 7/km²people per km²
- 370maverage altitude of the basin
- 2,526mmof rain a year (basin average)
- 23.8°Caverage air temperature
- 11%protected areas
What covers the basin
- 96% Forest
- 2% Cropland
RiverATLAS (HydroATLAS v1.0, CC BY 4.0): land cover, people, protected areas, glaciers and dams over the whole basin upstream of the mouth.
Cross-checked with our atlases
Utamboni 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
Waterfalls (4)
On the river, by Cascadyas
- Cascada Minguokm 61
- Cascada Cuakiguikm 72
- Cascada Alarkm 73
- Cascada Enuekm 96
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.
Nearby
Rivers nearby
Equatorial Guinea365 km510 m³/s65 km awayCampo RiverEquatorial Guinea460 km720 m³/s149 km awayOgooué River
Gabon850 km4,800 m³/s244 km awaySanaga
Cameroon918 km2,100 m³/s283 km awayNyong RiverCameroon640 km450 m³/s251 km awayIvindo RiverGabon500 km780 m³/s294 km awayWouri RiverCameroon160 km620 m³/s340 km awayMbam RiverCameroon425 km710 m³/s412 km awayWhere these numbers come from
| Name, length, places | Wikidata (Q4783441) · 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 |
| 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.
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rivers
Every river from source to sea: the journey, the flow and the basin in numbers.You are here
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Every canyon cut to scale: depth to the floor, rim and floor temperatures, trails and viewpoints.Coming soonVisit