The Isfayramsay ( ky, Исфайрамсай, Isfayramsay, uz, ) is a river in

Kyrgyzstan Kyrgyzstan,, pronounced or the Kyrgyz Republic, is a landlocked country in Central Asia. Kyrgyzstan is bordered by Kazakhstan to the north, Uzbekistan to the west, Tajikistan to the south, and the People's Republic of China to the ea ...

and

Uzbekistan Uzbekistan (, ; uz, Ozbekiston, italic=yes / , ; russian: Узбекистан), officially the Republic of Uzbekistan ( uz, Ozbekiston Respublikasi, italic=yes / ; russian: Республика Узбекистан), is a doubly landlocked co ...

. Its source is in the

Alay Range The Alay or Alai Range ( ky, Алай тоо кыркасы; russian: Алайский хребет) is a mountain range that extends from the Tien Shan mountain range in Kyrgyzstan west into Tajikistan. It is part of the Pamir-Alay mountain syste ...

, where it is fed by many glaciers. Due to use for irrigation, it does not reach the

Syr Darya The Syr Darya (, ),, , ; rus, Сырдарья́, Syrdarjja, p=sɨrdɐˈrʲja; fa, سيردريا, Sirdaryâ; tg, Сирдарё, Sirdaryo; tr, Seyhun, Siri Derya; ar, سيحون, Seyḥūn; uz, Sirdaryo, script-Latn/. historically known ...

anymore, but ends at the

Great Fergana Canal The Great Fergana Canal (russian: Ферганский канал, tg, Фарғона Канал, uz, Fargʻona Kanali, ar, قناة فرغانة) is an irrigation canal located on the Fergana Valley between Uzbekistan and Tajikistan in Central ...

north of

Fergana Fergana ( uz, Fargʻona/Фарғона, ), or Ferghana, is a district-level city and the capital of Fergana Region in eastern Uzbekistan. Fergana is about 420 km east of Tashkent, about 75 km west of Andijan, and less than 20 km ...

. The river is long, and the

watershed Watershed is a hydrological term, which has been adopted in other fields in a more or less figurative sense. It may refer to: Hydrology * Drainage divide, the line that separates neighbouring drainage basins * Drainage basin, called a "watershe ...

covers . The main settlements along the river Isfayramsay are the city

Quvasoy Quvasoy ( uz, Quvasoy/Қувасой; tg, Кувасой; russian: Кувасай, Kuvasay) is a city in Fergana Region in eastern Uzbekistan. Administratively, Quvasoy is a district-level city, that includes the urban-type settlement Doʻstlik a ...

in Uzbekistan, and the villages

Üch-Korgon Üch-Korgon ( ky, Үч-Коргон, pronounced , russian: Уч-Коргон, Uch-Korgon), is a large village in Batken Region of Kyrgyzstan. It is part of the Kadamjay District. With the population of 14,708 (2021), it is the largest village in ...

and Maydan in Kyrgyzstan. Its largest tributaries are the Kichik-Alay, Sürmötash, Shibe and Tegermach. Its annual average flow rate is at Üch-Korgon.

References

Rivers of Kyrgyzstan Rivers of Uzbekistan {{Kyrgyzstan-river-stub