River
Yí River
294 km from source to mouth · Uruguay.
UruguayFlows into Río Negro4th longest in Uruguay
In numbers
Length
294km
Average flow
290m³/s
Basin
12,600km²
Drop
133m
from 167 m to 34 m
Country
1
The journey
From source to mouth
294 km of river and 6 stops on the way: 2 towns and cities on its banks, dams, bridges and the tributaries that feed it.
- 0 kmCuchilla Grandeat 167 m
- 62 kmSarandí del Yi7,176 people
- 72 kmArroyo Illescastributary
- 189 kmArroyo Tomás Cuadratributary
- 202 kmDurazno40,279 people
- 223 kmArroyo Macieltributary
- 262 kmArroyo Porongostributary
- 294 kmRío Negroat 34 m
Water level along the river (RiverATLAS; the height is exaggerated). Towns: GeoNames and Wikidata; bridges, dams and tributaries: Wikidata.
River in Uruguay
At the mouth it carries 286 m³/s on average: an Olympic pool every 8.8 seconds. It drops from 167 m to 34 m, 0.5 m per kilometre on average. Its basin covers 12,600 km², about the size of QA. 87,000 people live in it. Highest water: from May to August. No large dam holds it back: it is one of the world's free-flowing rivers.
Where to start
- DuraznoLargest city on its banks · 40,279 people
- Carrasco General Cesáreo L. Berisso International Airport (MVD)Nearest airport with scheduled flights, 168 km from the cityCar hire at MVD airport (Ciudad de la Costa)Discover Cars · Affiliate link↗
- From April to May, September and from November to DecemberThe best months to visit
Yí River, month by month
Highest water: from May to August
Best months to visit: from April to May, September and from November to December.
From about 200 m³/s in the lowest month to 370 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
Yí River: the basin in numbers
13,194 km² of land send their water to this river. This is what lives on it.
- 87,000people live in the basin
- 7/km²people per km²
- 133maverage altitude of the basin
- 1,261mmof rain a year (basin average)
- 17.2°Caverage air temperature
- 1%protected areas
What covers the basin
- 3% Forest
- 3% Cropland
- 88% 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
Yí River: what you find on the way
- 1Weirs
- 1River beachesPlaya el sausal
From OpenStreetMap, within 1.9 km of the river. Not mapped is not the same as not there.
Cross-checked with our atlases
Yí 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.
1mountain at the sourcePeakyas
Mountains at the source (1)
Within 15 km of the source, by Peakyas
- Cerro Guaycurú7.0 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.
Tributaries
Where it flows, and what flows into it
It flows into
Río NegroUruguay916 km650 m³/sTributaries (14)
Also: Arroyo Porongos, Arroyo Maciel, Arroyo Tomás Cuadra, Arroyo de Caballero, Arroyo Illescas, Arroyo Feliciano, Arroyo Malo, Arroyo Sarandí, Arroyo del Sauce, Arroyo del Tala, Arroyo del Tala, Arroyo Mansavillagra, Arroyo Antonio Herrera, Arroyo de Tejera
Nearby
Rivers nearby
ArgentinaWhere these numbers come from
| Name, length, places | Wikidata (Q1581250) · 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