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River

Aconcagua River

142 km from source to mouth · Chile.

ChileChileFlows into Pacific Ocean8th longest in Chile

Follow the riverMonth by month

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

In numbers

Length

142km

Average flow

39m³/s

Basin

7,200km²

Drop

1,175m

from 1,176 m to 1 m

Country

1

The journey

From source to mouth

142 km of river and 17 stops on the way: 10 towns and cities on its banks, dams, bridges and the tributaries that feed it.

1,176 m1 m
Juncal Riverat 1,176 m0 km
Los Andes63,009 people28 km
San Esteban17,090 people30 km
Estero Pocurotributary48 km
Estero Quilpuétributary49 km
Estero Catemutributary77 km
Estero Los Lorostributary82 km
La Calera50,221 people101 km
Estero Los Litrestributary108 km
Estero Limachetributary127 km
Pacific Oceanat 1 m142 km
050100142 km
  1. 0 kmJuncal Riverat 1,176 m
  2. 28 kmLos Andes63,009 people
  3. 30 kmSan Esteban17,090 people
  4. 45 kmSan Felipe59,294 people
  5. 48 kmEstero Pocurotributary
  6. 49 kmEstero Quilpuétributary
  7. 49 kmPutaendo Rivertributary
  8. 58 kmPanquehue6,837 people
  9. 77 kmEstero Catemutributary
  10. 82 kmEstero Los Lorostributary
  11. 96 kmHijuelas10,005 people
  12. 101 kmLa Calera50,221 people
  13. 103 kmHacienda La Calera49,106 people
  14. 108 kmEstero Los Litrestributary
  15. 109 kmLa Cruz17,310 people
  16. 115 kmQuillota67,779 people
  17. 127 kmEstero Limachetributary
  18. 142 kmConcón42,152 people
  19. 142 kmPacific Oceanat 1 m

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

River in Chile

At the mouth it carries 39 m³/s on average: an Olympic pool every 64 seconds. It drops from 1,176 m to 1 m, 8.3 m per kilometre on average. Its basin covers 7,200 km², about the size of PS. 620,000 people live in it. Highest water: from July to August; lowest: from December to March. No large dam holds it back: it is one of the world's free-flowing rivers.

Read more on Wikipedia

Where to start

Aconcagua River, month by month

Highest water: from July to August

Lowest water: from December to March. Best months to visit: from January to April and October.

2.5
20°1 mmJan
2.0
19°3 mmFeb
2.0
18°2 mmMar
4.3
15°14 mmApr
27
12°52 mmMay
70
10°84 mmJun
100
10°80 mmJul
94
10°53 mmAug
57
12°22 mmSep
24
14°12 mmOct
7.6
17°9 mmNov
3.6
18°1 mmDec
Water (estimated flow)Air (average) Rain (mm)Best months

From about 2.0 m³/s in the lowest month to 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

Aconcagua River: the basin in numbers

7,322 km² of land send their water to this river. This is what lives on it.

Free-flowingDams upstream can hold only 0.0% of a year's flow: the river still keeps its natural rhythm.
  • 620,000people live in the basin
  • 85/km²people per km²
  • 1,862maverage altitude of the basin
  • 353mmof rain a year (basin average)
  • 9.2°Caverage air temperature
  • 2%protected areas
  • 3%permafrost

What covers the basin

  • 1% Forest
  • 9% Cropland
  • 40% Pasture
  • 4% 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

Aconcagua River: what you find on the way

  • 2Weirs
  • 1Locks
  • 3River beachesLa Boca, Playa Negra, Playa Amarilla

From OpenStreetMap, within 1.7 km of the river. Not mapped is not the same as not there.

Cross-checked with our atlases

Aconcagua 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.

  • 19beaches at the mouth and on the banksCoastya
  • 22mountains at the sourcePeakyas

Beaches (19)

At the mouth (25 km) and on the banks, by Coastya

  1. Playa Acapulco12 km away17.2°C
  2. Playa Quilliruca24 km away17.3°C
  3. Playa Ritoque7.2 km away17.2°C
  4. Playa del Horcón22 km away17.3°C
  5. Caleta Higuerillaskm 148 · cove17.2°C
  6. Caleta Torpederas17 km away · cove17.2°C
  7. Caleta Grande17 km away · cove17.2°C
  8. Caleta Cochoa5.4 km away · cove17.2°C

11 more on CoastyaOpen Coastya ↗

Mountains at the source (22)

Within 15 km of the source, by Peakyas

  1. Morro Gualtatas9.8 km away3,333m
  2. Cerro Los Leones12 km away3,316m
  3. Morro Gallos12 km away2,710m
  4. Cerro Los Potrillos14 km away1,941m
  5. Cerro Tuquito12 km away
  6. Cerro Yaretas14 km away
  7. Morro Portillo10 km away
  8. Cerro del Potrero Alto7.8 km away

14 more on PeakyasOpen Peakyas ↗

From space

The source and the mouth, seen from orbit

Aconcagua River: satellite view of the source
The source14 km across
Aconcagua River: satellite view of the mouth
The mouth12 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

Aconcagua River in pictures

Tributaries

Where it flows, and what flows into it

Tributaries (11)

Also: Juncal River, Estero Limache, Putaendo River, Estero Catemu, Estero Los Loros, Estero Pocuro, Estero Quilpué, Colorado river (Aconcagua), Blanco River, Estero Los Litres, Estero El Cobre

Where these numbers come from

Name, length, placesWikidata (Q738745) · CC0
Course, profile, basinRiverATLAS v1.0 (HydroATLAS, Linke et al. 2019) · CC BY 4.0 — followed along the river network from the point 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 atlasesCoastya, 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