Scenic Poplar trees and Thredbo River, New South Wales, Australia

Populus nigra, the black poplar, is a species of cottonwood poplar, the type species of section Aigeiros of the genus Populus, native to Europe, southwest and central Asia, and northwest Africa. The black poplar is a medium- to large-sized deciduous tree, reaching 20–30 m, and rarely 40 m tall. The Thredbo River rises below South Rams Head, near Mount Leo within the Kosciuszko National Park. The river flows generally adjacent to the Alpine Way, west and northwest near Dead Horse Gap, then generally north, passing through the village of Thredbo, joined by four tributaries including the Little Thredbo River, before emptying into Lake Jindabyne, impounded by Jindabyne Dam. Within Lake Jindabyne, the river reaches its confluence with the Snowy River. The river descends 649 metres over its 40 kilometres course. The flow of the river is impacted by alpine conditions; with high flows during spring as a result of snow melt. Meanwhile, during winter, the river is subject to snow and ice conditions. 27627

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