River
Arpa River
128 km from source to mouth · Azerbaijan and Armenia.
Azerbaijan and ArmeniaFlows into Aras River10th longest in Azerbaijan
In numbers
Length
128km
Average flow
21m³/s
Basin
5,650km²
Drop
1,518m
from 2,304 m to 786 m
Countries
2
The journey
From source to mouth
128 km of river and 13 stops on the way: 6 towns and cities on its banks, dams, bridges and the tributaries that feed it.
- 0 kmSourceat 2,304 m
- 10 kmJermuk4,095 people
- 11 kmJermuk Waterfall68 m
- 11 kmDzhermukskiy Vodopad
- 24 kmGndevank
- 46 kmVayk5,877 people
- 57 kmMalishka4,585 people
- 63 kmAgarakadzor1,301 people
- 64 kmAgarakadzor Bridge
- 67 kmYeghegistributary
- 71 kmErtij Fort
- 72 kmArpi1,149 people
- 80 kmAreni1,772 people
- 96 kmArpaçay Su Anbarı2.8 km²
- 128 kmAras Riverat 786 m
Water level along the river (RiverATLAS; the height is exaggerated). Towns: GeoNames and Wikidata; bridges, dams and tributaries: Wikidata.
River in Armenia and Azerbaijan
At the mouth it carries 21 m³/s on average: an Olympic pool every 118 seconds. It drops from 2,304 m to 786 m, 12 m per kilometre on average. Its basin covers 5,650 km², about the size of BN. 89,000 people live in it. Highest water: from March to April; lowest: from January to February and from August to September. It is heavily dammed: reservoirs can hold 71% of a year's flow.
Where to start
- VaykLargest city on its banks · 5,877 people
- Nakhchivan International Airport (NAJ)Nearest airport with scheduled flights, 55 km from the cityCar hire at EVN airport (Yerevan)Discover Cars · Affiliate link↗
- From May to SeptemberThe best months to visit
Arpa River, month by month
Highest water: from March to April
Lowest water: from January to February and from August to September. Best months to visit: from May to September.
From about 1.0 m³/s in the lowest month to 38 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
Arpa River: the basin in numbers
2,501 km² of land send their water to this river. This is what lives on it.
- 89,000people live in the basin
- 36/km²people per km²
- 1,976maverage altitude of the basin
- 442mmof rain a year (basin average)
- 6.5°Caverage air temperature
- 20%protected areas
- 0.1%covered by lakes
- 0.1km³held in reservoirs
What covers the basin
- 17% Cropland
- 39% Pasture
- 2% 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
Arpa River: what you find on the way
- 2Weirs
- 8WaterfallsJermuk Waterfall and 7 more
- 2River beachesHot Spring
From OpenStreetMap, within 1.4 km of the river. Not mapped is not the same as not there.
Cross-checked with our atlases
Arpa 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.
2waterfalls on the riverCascadyas
1lake on its wayLakeyas
26mountains at the sourcePeakyas
Waterfalls (2)
On the river, by Cascadyas
- Jermuk Waterfallkm 968m
- Dzhermukskiy Vodopadkm 10
Cascadyas is coming soonOpen Cascadyas ↗
Lakes and reservoirs (1)
Lakes it flows through, by Lakeyas
- Arpaçay Su Anbarıkm 822.8km²
Lakeyas is coming soonOpen Lakeyas ↗
Mountains at the source (26)
Within 15 km of the source, by Peakyas
- Porak13 km away2,800m
- Vardenis Mountain13 km away3,522m
- Daranak13 km away3,388m
- Sarchali11 km away3,387m
- Gora Sarymoaglydag14 km away3,344m
- Mooradasar8.4 km away3,214m
- Devasar14 km away3,072m
- Sheksar8.4 km away3,149m
18 more on PeakyasOpen Peakyas ↗
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.
Photos
Arpa River in pictures
Tributaries
Where it flows, and what flows into it
It flows into
Aras RiverAzerbaijan1,072 km280 m³/sTributaries (18)
Also: Yeghegis, Aghavnadzor, Elpin, Herher, Gnishik, Darb, Malishka, Gömür, Kengeri, Agarakadzor, Azatek, Taparu, Shamamidzor, Puchurget, Gladzor, Grav, Ankank, Ardech
In the same basin
Azerbaijan1,360 km440 m³/sAlazaniAzerbaijan351 km98 m³/sHrazdan RiverArmenia141 km18 m³/sAkhurian River
Turkey186 km270 m³/sIori RiverAzerbaijan320 km120 m³/sDebed
Georgia178 km30 m³/sVorotan RiverAzerbaijan178 km22 m³/sAragvi RiverGeorgia112 km33 m³/sKhrami RiverAzerbaijan201 km51 m³/sAzat RiverArmenia55 km36 m³/sNearby
Rivers nearby
Armenia141 km18 m³/s73 km awayAzat RiverArmenia55 km36 m³/s66 km awayKasagh RiverArmenia89 km6.8 m³/s88 km awayAkhurian RiverTurkey186 km270 m³/s134 km awayVorotan RiverAzerbaijan178 km22 m³/s155 km awayHakari RiverAzerbaijan170 km16 m³/s166 km awayAlazaniAzerbaijan351 km98 m³/s222 km awayKhrami RiverAzerbaijan201 km51 m³/s205 km awayWhere these numbers come from
| Name, length, places | Wikidata (Q2015695) · 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 | Cascadyas, Lakeyas, 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
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