Tuba (river)
The Tuba () is a river in Krasnoyarsk Krai in Siberia in Russia. It is formed by the confluence of the rivers Kazyr (Казыр) and Amyl (Амы́л) and is a right tributary of the Yenisey. The length of the river proper is  or  from the headwaters of the Kazyr in the Eastern Sayan Mountains in the Minusinsk Hollow. The area of its basin, which includes more than a thousand lakes, is . The Tuba flows into the Krasnoyarsk Reservoir so that the mouth of the Tuba is actually part of the reservoir. The river is navigable at high water to  from its mouth, but it freezes sometime around late October to early December, and thaws from April to early May. There are two (sometimes considered three) road bridges and a railway bridge constructed over the Tuba. See also
Хакасско-Минусинская котловина.jpg, a map of the Upper Yenisei and its tributaries including the Tuba

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Rivers of Krasnoyarsk Krai