River
Río Negro
635 km from source to mouth · Argentina.
ArgentinaFlows into Atlantic Ocean9th longest in Argentina
In numbers
Length
635km
Average flow
1,000m³/s
Basin
132,275km²
Drop
256m
from 256 m to 0 m
Country
1
The journey
From source to mouth
635 km of river and 7 stops on the way: 4 towns and cities on its banks, dams, bridges and the tributaries that feed it.
- 0 kmLimay Riverat 256 m
- 3 kmLimay Rivertributary
- 3 kmNeuquén Rivertributary
- 36 kmPaso Córdoba1,072 people
- 226 kmChoele Choel13,013 people
- 576 kmCarmen de Patagones25,982 people
- 576 kmViedma48,940 people
- 578 kmCarmen de Patagones-Viedma road rail bridge
- 635 kmAtlantic Oceanat 0 m
Water level along the river (RiverATLAS; the height is exaggerated). Towns: GeoNames and Wikidata; bridges, dams and tributaries: Wikidata.
River in Argentina
At the mouth it carries 1,014 m³/s on average: an Olympic pool every 2.5 seconds. It drops from 256 m to 0 m, 0.4 m per kilometre on average. Its basin covers 132,275 km², about the size of GR. 600,000 people live in it. Highest water: from May to July. It is heavily dammed: reservoirs can hold 154% of a year's flow.
Where to start
- ViedmaLargest city on its banks · 48,940 people
- Gobernador Castello Airport (VDM)Nearest airport with scheduled flights, 6 km from the cityCar hire in ViedmaDiscover Cars · Affiliate link↗
- On the water16 ferry piers, marinas, boat rentals and boat ramps along the river (OpenStreetMap)
- From November to February and AprilThe best months to visit
Río Negro, month by month
Highest water: from May to July
Best months to visit: from November to February and April.
From about 150 m³/s in the lowest month to 2,100 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
Río Negro: the basin in numbers
112,936 km² of land send their water to this river. This is what lives on it.
- 600,000people live in the basin
- 5/km²people per km²
- 945maverage altitude of the basin
- 420mmof rain a year (basin average)
- 10.4°Caverage air temperature
- 9%protected areas
- 2.5%covered by lakes
- 42km³held in reservoirs
What covers the basin
- 10% Forest
- 1% Cropland
- 38% 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
Río Negro: what you find on the way
- 3Weirs
- 13Boat rampsBajada de lanchas and 12 more
- 2Ferry piers
- 1MarinasClub Náutico Villa Regina
- 3River beachesBalneario Náutico, Playa Inclusiva, Playa José Antonio Ruiz
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
Where these numbers come from
| Name, length, places | Wikidata (Q817337) · 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 |
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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