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How does the Yenisey River change after leaving the mountains at Oznachennoye?
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Yenisey River
The Ob and Yenisey river basins and their drainage networks.
After leaving the mountains at Oznachennoye, the Yenisey River undergoes several notable changes as it enters the Minusinsk Basin:
- Valley Expansion: The river valley broadens significantly, measuring more than 3 miles (5 km) wide just below the Abakan confluence.1
- Riverbed Characteristics: The riverbed, which spans about 500 yards (460 meters) from bank to bank, becomes studded with islands.1
- Flow Velocity: The flow velocity of the river is reduced to approximately 6 feet (2 meters) per second.1
- Reservoir Formation: The river begins to feed into the long and narrow Krasnoyarsk Reservoir, which is contained on its eastern side by the northwestern spurs of the Eastern Sayan mountains.1