River
Bermejo
1,060 km from source to mouth · Paraguay, Argentina and Bolivia.
Paraguay, Argentina and BoliviaFlows into Paraguay River2nd longest in Paraguay
In numbers
Length
1,060km
Average flow
340m³/s
Basin
133,000km²
Drop
2,530m
from 2,580 m to 50 m
Countries
3
The journey
From source to mouth
1,060 km of river and 5 stops on the way: 1 towns and cities on its banks, dams, bridges and the tributaries that feed it.
- 0 kmSourceat 2,580 m
- 202 kmRío Grande de Tarijatributary
- 204 kmPescado Rivertributary
- 265 kmSan Francisco Rivertributary
- 755 kmRío Bermejitotributary
- 859 kmEl Colorado12,780 people
- 1,060 kmParaguay Riverat 50 m
Water level along the river (RiverATLAS; the height is exaggerated). Towns: GeoNames and Wikidata; bridges, dams and tributaries: Wikidata.
River of Argentina and Bolivia
At the mouth it carries 340 m³/s on average: an Olympic pool every 7.4 seconds. It drops from 2,580 m to 50 m, 2.4 m per kilometre on average. Its basin covers 133,000 km², about the size of GR. 1.6 million people live in it. Highest water: from February to April; lowest: from July to October. No large dam holds it back: it is one of the world's free-flowing rivers.
Where to start
- El ColoradoLargest city on its banks · 12,780 people
- Formosa National Airport (FMA)Nearest airport with scheduled flights, 115 km from the cityCar hire at ASU airport (Asunción)Discover Cars · Affiliate link↗
- From May to SeptemberThe best months to visit
Bermejo, month by month
Highest water: from February to April
Lowest water: from July to October. Best months to visit: from May to September.
From about 71 m³/s in the lowest month to 1,000 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
Bermejo: the basin in numbers
107,169 km² of land send their water to this river. This is what lives on it.
- 1.6millionpeople live in the basin
- 15/km²people per km²
- 1,003maverage altitude of the basin
- 702mmof rain a year (basin average)
- 19.4°Caverage air temperature
- 5%protected areas
- 0.1%covered by lakes
- 0.1km³held in reservoirs
What covers the basin
- 69% Forest
- 5% Cropland
- 10% 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
Bermejo: what you find on the way
- 2Weirs
From OpenStreetMap, within 2.4 km of the river. Not mapped is not the same as not there.
Cross-checked with our atlases
Bermejo 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.
5mountains at the sourcePeakyas
Mountains at the source (5)
Within 15 km of the source, by Peakyas
- Cerro de Tajzara13 km away4,294m
- Cerro Mecoya9.2 km away3,687m
- Cerro Latacoya7.1 km away2,762m
- Cerro Aramallo11 km away2,606m
- Cerro Huancarreo14 km away
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
Bermejo in pictures
Tributaries
Where it flows, and what flows into it
It flows into
Paraguay RiverArgentina2,621 km2.7 m³/sTributaries (5)
Also: Río Grande de Tarija, Pescado River, San Francisco River, Río Bermejito, Lipeo River
In the same basin
Uruguay4,880 km16,000 m³/sUruguay RiverUruguay1,790 km4.6 m³/sIguazu RiverArgentina1,320 km1,700 m³/sPilcomayo RiverParaguay1,100 km200 m³/sGrande River
Brazil1,090 km2,000 m³/sTietê RiverBrazil1,150 km2,500 m³/sSalado RiverArgentina1,150 km15 m³/sParanaíba RiverBrazil900 km1,500 m³/sParanapanema RiverBrazil929 km1,200 m³/sApa RiverParaguay380 km130 m³/sWhere these numbers come from
| Name, length, places | Wikidata (Q270467) · 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 | 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.
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