|State||New South Wales|
|Region||Australian Alps (IBRA), Snowy Mountains|
|Local government area||Snowy Monaro Regional Council|
|⁃ location||below Shaw Hill|
|⁃ elevation||1,380 m (4,530 ft)|
|Mouth||confluence with the Snowy River|
|900 m (3,000 ft)|
|Length||84 km (52 mi)|
|River system||Snowy River catchment|
|⁃ left||Chance Creek, Alpine Creek (New South Wales), Gang Gang Creek|
|⁃ right||Tabletop Creek, Hughes Creek, Swamp Creek (New South Wales, Snowy River), Big Tolbar Creek|
|National park||Kosciuszko NP|
Course and features
The Eucumbene River rises below Shaw Hill, in the northern part of the Kosciuszko National Park, approximately 10 kilometres (6.2 mi) north of the village of Kiandra. The river flows generally south and southeast before emptying into Lake Eucumbene where its flow is impounded by Eucumbene Dam. After passing through or over the dam wall, the river flows generally south before emptying into Lake Jindabyne, impounded by Jindabyne Dam. Within Lake Jindabyne, the river reaches its confluence with the Snowy River.
The flow of the river is impacted by alpine conditions, with high flows during spring as a result of snow melt. During winter, the river is subject to snow and ice conditions.