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River

Dulce River

650 km from source to mouth · Argentina.

ArgentinaArgentinaFlows into Mar Chiquita7th longest in Argentina

Follow the riverMonth by month

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

In numbers

Length

650km

Average flow

80m³/s

Basin

89,936km²

Drop

438m

from 507 m to 69 m

Country

1

The journey

From source to mouth

650 km of river and 8 stops on the way: 3 towns and cities on its banks, dams, bridges and the tributaries that feed it.

507 m69 m
Sourceat 507 m0 km
Rio Hondo Reservoir218 km²142 km
Termas de Río Hondo27,838 people146 km
Santiago del Estero - La Banda road bridge232 km
Santiago del Estero252,192 people236 km
Laguna de Los Porongos1.3 km²599 km
Mar Chiquitaat 69 m650 km
0200400650 km
  1. 0 kmSourceat 507 m
  2. 0 kmDique El Cadillal
  3. 22 kmAlderetes38,466 people
  4. 142 kmRio Hondo Reservoir218 km²
  5. 146 kmTermas de Río Hondo27,838 people
  6. 222 kmLos Quiroga Dam
  7. 232 kmSantiago del Estero - La Banda road bridge
  8. 236 kmSantiago del Estero252,192 people
  9. 599 kmLaguna de Los Porongos1.3 km²
  10. 650 kmMar Chiquitaat 69 m

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

In the Argentine province of Santiago del Estero

At the mouth it carries 80 m³/s on average: an Olympic pool every 31 seconds. It drops from 507 m to 69 m, 0.7 m per kilometre on average. Its basin covers 89,936 km², about the size of RS. 2.0 million people live in it. Highest water: from February to March; lowest: from July to October. Dams and reservoirs hold back a large share of its water (47% of a year's flow).

Read more on Wikipedia

Where to start

Dulce River, month by month

Highest water: from February to March

Lowest water: from July to October. Best months to visit: from May to June and from August to October.

180
27°128 mmJan
190
26°113 mmFeb
200
23°111 mmMar
180
19°56 mmApr
150
16°25 mmMay
130
13°15 mmJun
120
13°10 mmJul
120
15°11 mmAug
120
18°21 mmSep
130
21°54 mmOct
150
24°83 mmNov
160
26°108 mmDec
Water (estimated flow)Air (average) Rain (mm)Best months

From about 120 m³/s in the lowest month to 200 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

Dulce River: the basin in numbers

69,584 km² of land send their water to this river. This is what lives on it.

Heavily regulatedReservoirs can hold 47% of a year's flow: dams shape its seasons.
  • 2.0millionpeople live in the basin
  • 28/km²people per km²
  • 501maverage altitude of the basin
  • 634mmof rain a year (basin average)
  • 19.4°Caverage air temperature
  • 1%protected areas
  • 0.8%covered by lakes
  • 2.2km³held in reservoirs

What covers the basin

  • 38% Forest
  • 7% Cropland
  • 8% 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

Dulce River: what you find on the way

  • 9DamsDique Los Quiroga, Los Quiroga Dam and 7 more
  • 7Weirs

From OpenStreetMap, within 2.3 km of the river. Not mapped is not the same as not there.

Cross-checked with our atlases

Dulce 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.

  • 2lakes on its wayLakeyas

Lakes and reservoirs (2)

Lakes it flows through, by Lakeyas

  1. Rio Hondo Reservoirkm 142218km²
  2. Laguna de Los Porongoskm 5991.3km²

Lakeyas is coming soonOpen Lakeyas ↗

From space

The source and the mouth, seen from orbit

Dulce River: satellite view of the source
The source14 km across
Dulce River: satellite view of the mouth
The mouth36 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

Dulce River in pictures

Barranco del río Dulce - 01
Carlos Delgado · CC BY-SA 3.0 es
27-Puente ferroviario Rio Dulce Termas Rio Hondo SdE
miroab · CC BY-SA 2.0
Río Dulce desde el Dique Frontal
Pertile · CC BY-SA 3.0
Río Dulce desde la Costanera de Termas de Río Hondo
Pertile · CC BY-SA 3.0

Tributaries

Where it flows, and what flows into it

Tributaries (2)

Also: Río Lules, Río Marapa

Where these numbers come from

Name, length, placesWikidata (Q2565430) · 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 — 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