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River

Mantaro River

724 km from source to mouth · Peru.

PeruPeruFlows into Ene River7th longest in Peru

Follow the riverMonth by month

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

In numbers

Length

724km

Average flow

800m³/s

Basin

35,545km²

Drop

3,613m

from 4,081 m to 468 m

Country

1

The journey

From source to mouth

724 km of river and 12 stops on the way: 7 towns and cities on its banks, dams, bridges and the tributaries that feed it.

4,081 m468 m
Lake Junínat 4,081 m0 km
La Oroya33,345 people98 km
Achamayo Rivertributary206 km
Huancayo378,203 people225 km
Ichu Rivertributary311 km
Ene Riverat 468 m724 km
0200400600724 km
  1. 0 kmLake Junínat 4,081 m
  2. 12 kmLake Junín163 km²
  3. 98 kmLa Oroya33,345 people
  4. 177 kmJauja21,057 people
  5. 205 kmConcepción11,330 people
  6. 206 kmAchamayo Rivertributary
  7. 210 kmSan Jeronimo De Tunan8,772 people
  8. 222 kmPilcomayo8,169 people
  9. 225 kmHuancayo378,203 people
  10. 225 kmCunas Rivertributary
  11. 227 kmChilca73,371 people
  12. 228 kmPuente Comuneros I
  13. 311 kmIchu Rivertributary
  14. 724 kmEne Riverat 468 m

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

Left headwater of the Ene River in Peru

At the mouth it carries 803 m³/s on average: an Olympic pool every 3.1 seconds. It drops from 4,081 m to 468 m, 5.0 m per kilometre on average. Its basin covers 35,545 km², about the size of TW. 1.6 million people live in it. Highest water: from February to March; lowest: from June to September. Its dams hold back little of its water (2.4% of a year's flow).

Read more on Wikipedia

Where to start

  • HuancayoLargest city on its banks · 378,203 people
  • Francisco Carle Airport (JAU)Nearest airport with scheduled flights, 42 km from the cityCar hire at LIM airport (Lima)Discover Cars · Affiliate link
  • On the water2 ferry piers, marinas, boat rentals and boat ramps along the river (OpenStreetMap)
  • From April to May and from September to NovemberThe best months to visit

Mantaro River, month by month

Highest water: from February to March

Lowest water: from June to September. Best months to visit: from April to May and from September to November.

1,200
14°130 mmJan
1,400
14°132 mmFeb
1,500
14°131 mmMar
1,200
14°61 mmApr
790
13°30 mmMay
410
12°14 mmJun
290
12°16 mmJul
300
12°27 mmAug
410
13°50 mmSep
580
14°70 mmOct
710
14°71 mmNov
920
14°102 mmDec
Water (estimated flow)Air (average) Rain (mm)Best months

From about 290 m³/s in the lowest month to 1,500 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

Mantaro River: the basin in numbers

34,669 km² of land send their water to this river. This is what lives on it.

Lightly regulatedReservoirs can hold 2.4% of a year's flow.
  • 1.6millionpeople live in the basin
  • 45/km²people per km²
  • 3,882maverage altitude of the basin
  • 858mmof rain a year (basin average)
  • 7.6°Caverage air temperature
  • 9%protected areas
  • 1.2%covered by lakes
  • 0.6km³held in reservoirs

What covers the basin

  • 16% Forest
  • 6% Cropland
  • 42% Pasture
  • 1% 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

Mantaro River: what you find on the way

  • 4DamsRepresa de Upamayo, Presa Malpaso, Represa Tablachaca and 1 more
  • 1Weirs
  • 2WaterfallsCataratas Gemelas de Casaracra
  • 2Ferry piers

From OpenStreetMap, within 2.1 km of the river. Not mapped is not the same as not there.

Cross-checked with our atlases

Mantaro 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.

  • 1lake on its wayLakeyas
  • 18mountains at the sourcePeakyas

Lakes and reservoirs (1)

Lakes it flows through, by Lakeyas

  1. Lake Junínkm 11 · 281 m deep163km²

Lakeyas is coming soonOpen Lakeyas ↗

Mountains at the source (18)

Within 15 km of the source, by Peakyas

  1. Cerro Incapirca13 km away
  2. Cerro Tupunhuay Cruz12 km away
  3. Cerro Chacchagan14 km away
  4. Loma Cucuparac Chico9.5 km away
  5. Cerro Lamatrias12 km away
  6. Cerro Gircaccancha13 km away
  7. Cerro Huaracancha14 km away
  8. Cerro Huaycancha12 km away

10 more on PeakyasOpen Peakyas ↗

From space

The source and the mouth, seen from orbit

Mantaro River: satellite view of the source
The source14 km across
Mantaro River: satellite view of the mouth
The mouth25 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.

Where these numbers come from

Name, length, placesWikidata (Q773333) · CC0
Course, profile, basinRiverATLAS v1.0 (HydroATLAS, Linke et al. 2019) · CC BY 4.0 — followed from the source to the mouth 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 atlasesLakeyas, 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