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River

Silis

228 km from source to mouth · Spain.

SpainSpainFlows into Minho River

Follow the riverMonth by month

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

In numbers

Length

228km

Average flow

240m³/s

Basin

9,331km²

Drop

949m

from 1,075 m to 126 m

Country

1

The journey

From source to mouth

228 km of river and 22 stops on the way: 8 towns and cities on its banks, dams, bridges and the tributaries that feed it.

1,075 m126 m
La Cuetaat 1,075 m0 km
Matalavilla-demningen1.0 km²26 km
Bárcena Reservoir6.3 km²65 km
Ponferrada68,736 people71 km
Peñarrubia Reservoir0.4 km²107 km
Pumares Reservoir0.5 km²116 km
Bibei Rivertributary158 km
Lor Rivertributary172 km
Minho Riverat 126 m228 km
050100150200228 km
  1. 0 kmLa Cuetaat 1,075 m
  2. 6 kmVillablino8,919 people
  3. 10 kmLas Rozas Reservoir0.3 km²
  4. 26 kmMatalavilla-demningen1.0 km²
  5. 48 kmToreno3,661 people
  6. 65 kmBárcena Reservoir6.3 km²
  7. 71 kmPonferrada68,736 people
  8. 71 kmPuente Querol
  9. 90 kmCúa Rivertributary
  10. 107 kmPeñarrubia Reservoir0.4 km²
  11. 116 kmPumares Reservoir0.5 km²
  12. 122 kmCabrera Rivertributary
  13. 122 kmBridge of Sobradelo
  14. 131 kmO Barco de Valdeorras13,463 people
  15. 142 kmA Rúa4,975 people
  16. 145 kmA Rúa de Valdeorras4,214 people
  17. 145 kmPetín856 people
  18. 146 kmBridge of A Cigarrosa
  19. 158 kmBibei Rivertributary
  20. 169 kmQuiroga4,122 people
  21. 172 kmLor Rivertributary
  22. 218 kmCabetributary
  23. 226 kmOs Peares reservoir3.7 km²
  24. 228 kmMinho Riverat 126 m

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

River in Spain

At the mouth it carries 243 m³/s on average: an Olympic pool every 10 seconds. It drops from 1,075 m to 126 m, 4.2 m per kilometre on average. Its basin covers 9,331 km², about the size of CY. 437,000 people live in it. Highest water: from December to February; lowest: from June to September. Dams and reservoirs hold back a large share of its water (33% of a year's flow).

Read more on Wikipedia

Where to start

  • PonferradaLargest city on its banks · 68,736 people
  • Bragança Airport (BGC)Nearest airport with scheduled flights, 77 km from the cityCar hire at OVD airport (Ranón)Discover Cars · Affiliate link
  • On the water5 ferry piers, marinas, boat rentals and boat ramps along the river (OpenStreetMap)
  • From May to SeptemberThe best months to visit

Silis, month by month

Highest water: from December to February

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

480
5°99 mmJan
450
7°94 mmFeb
370
9°79 mmMar
290
11°65 mmApr
220
14°66 mmMay
150
18°43 mmJun
85
20°21 mmJul
43
20°25 mmAug
70
18°54 mmSep
170
13°85 mmOct
330
8°107 mmNov
450
6°115 mmDec
Water (estimated flow)Air (average) Rain (mm)Best months

From about 43 m³/s in the lowest month to 480 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

Silis: the basin in numbers

12,558 km² of land send their water to this river. This is what lives on it.

Heavily regulatedReservoirs can hold 33% of a year's flow: dams shape its seasons.
  • 437,000people live in the basin
  • 35/km²people per km²
  • 821maverage altitude of the basin
  • 1,000mmof rain a year (basin average)
  • 10.8°Caverage air temperature
  • 13%protected areas
  • 0.4%covered by lakes
  • 2.5km³held in reservoirs

What covers the basin

  • 87% Forest
  • 5% Cropland
  • 11% 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

Silis: what you find on the way

  • 30DamsPresa de Villaseca, Presa de las Rozas, Presa Matalavilla and 27 more
  • 11Weirs
  • 3Locks
  • 16WaterfallsCascada del Pimpanón, A Pincheira de Portomao, Fervenza do Cachón and 13 more
  • 5Boat rampsO Porto da Barca and 4 more
  • 1River beachesÁrea Recreativa do Río Búbal

From OpenStreetMap, within 1.9 km of the river. Not mapped is not the same as not there.

Cross-checked with our atlases

Silis 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.

  • 6lakes on its wayLakeyas
  • 2mountains at the sourcePeakyas

Lakes and reservoirs (6)

Lakes it flows through, by Lakeyas

  1. Las Rozas Reservoirkm 90.3km²
  2. Matalavilla-demningenkm 241.0km²
  3. Bárcena Reservoirkm 596.3km²
  4. Peñarrubia Reservoirkm 970.4km²
  5. Pumares Reservoirkm 1050.5km²
  6. Os Peares reservoirkm 2043.7km²

Lakeyas is coming soonOpen Lakeyas ↗

Mountains at the source (2)

Within 15 km of the source, by Peakyas

  1. Peña Ubiña13 km away · prominence 1,121 m
  2. Peña Rueda15 km away

Open Peakyas ↗

From space

The source and the mouth, seen from orbit

Silis: satellite view of the source
The source14 km across
Silis: satellite view of the mouth
The mouth15 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

Silis in pictures

Tributaries

Where it flows, and what flows into it

Tributaries (11)

Also: Cabe, Lor River, Boeza, Cabrera River, Cúa River, Bibei River, Soldón River, Oza River, Mao River, Ourense, río Casoio, río Leira

Where these numbers come from

Name, length, placesWikidata (Q14556) · 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