| Mouth | Tom |
|---|---|
| Mouth coordinates | 53.7486°N 87.7986°E |
| Country | Russia |
| Length | 663 km |
| Basin size | 17600 km² |
The Mrassu or Mras-Su (Russian: Мрассу́[1] or Мрас-Су́,[2] cjs: Прас, Пырас, Пырас-суғ) is a river in Kemerovo Oblast, Russia. It is a left tributary of the Tom (in the Ob's drainage basin), and has its sources in the Abakan Range. It is 338 kilometres (210 mi) long, with a drainage basin of 8,840 square kilometres (3,410 sq mi).[2] The Mrassu joins the Tom near Myski.
The Mrassu freezes from mid-November to April. The water flow at Myski averages at 155 square meters per second (1668 ft3/sec) every year with a minimum of 24.4 m3/sec (262 ft3/sec) in February and a maximum of 694 m3/sec (7470 ft3/sec) in May.[3]
References
- ^ Словарь названий гидрографических объектов России и других стран — членов СНГ, Federal Service for Geodesy and Cartography of Russia, 1999, p. 255
- ^
- ^ "Mras-Su At Mysky". www.r-arcticnet.sr.unh.edu. Retrieved 2024-10-18.