Isfana River
| Isfana River Andarsoy/Isfanasoy | |
|---|---|
The Isfana River as seen in central Razzkov | |
| Native name | Исфана суусу (Kyrgyz) |
| Location | |
| Country | Kyrgyzstan and Tajikistan |
| Districts | Leilek, Kyrgyzstan Jabbor Rasulov and Spitamen, Tajikistan |
| Towns/villages | Razzakov, Chimgen, Samat, Andarsoy, and Ghulakandoz |
| Physical characteristics | |
| Source | |
| • location | Turkestan Range, Leilek District, Kyrgyzstan |
| • coordinates | 39°42′36.1″N 69°43′22.2″E / 39.710028°N 69.722833°E |
| • elevation | 2,500 m (8,200 ft) |
| 2nd source | |
| • location | Turkestan Range, Leilek District, Kyrgyzstan |
| • coordinates | 39°42′13.8″N 69°40′54″E / 39.703833°N 69.68167°E |
| • elevation | 2,300 m (7,500 ft) |
| 3rd source | |
| • location | Turkestan Range, Leilek District, Kyrgyzstan |
| • coordinates | 39°46′29.8″N 69°34′27.5″E / 39.774944°N 69.574306°E |
| • elevation | 1,800 m (5,900 ft) |
| Mouth | |
• location | Ghulakandoz, Jabbor Rasulov District, Tajikistan |
• coordinates | 40°12′27.2″N 69°24′50.9″E / 40.207556°N 69.414139°E |
• elevation | 0 m (0 ft) |
| Length | 35 km (22 mi) – 69 km (43 mi) |
| Discharge | |
| • location | Chimgen, Kyrgyzstan |
| • average | 0.6 m3/s (21 cu ft/s) |
| • minimum | 0.1 m3/s (3.5 cu ft/s) |
| • maximum | 1.41 m3/s (50 cu ft/s) |
| Discharge | |
| • location | Kurgoncha, Tajikistan |
| • average | 0.47 m3/s (17 cu ft/s) |
| • minimum | 0.1 m3/s (3.5 cu ft/s) |
| • maximum | 0.84 m3/s (30 cu ft/s) |
| Basin features | |
| Progression | Syr Darya→ North Aral Sea |
The Isfana River (Kyrgyz: Исфана суусу; Uzbek: Isfana soyi or Isfanasoy; Russian: река Исфана), also called Isfanasoy and Andarsoy in its lower course, is a north-flowing transboundary river in Central Asia. It is approximately 69 kilometres (43 mi) long and flows through Razzakov, which was also called Isfana until 2022. The river's course runs through Kyrgyzstan and Tajikistan, from the Turkestan Range into the Syr Darya. Most of the river's water is diverted for irrigation or seeps into the ground, and as such it rarely reaches the Syr-Darya.
The Isfana is fed by unnamed glaciers on the northern flank of the Turkestan Range as well as groundwater. It has 31 tributaries, most of which meet in and around Razzakov. One of the several transboundary rivers in the Syr-Darya basin, the Isfana River flows parallel to the Khojabakirgan River. International donor organizations have supported the establishment of small basin councils in the Isfana River basin, particularly in Tajikistan.