| Mowamba River | |
| Name Other: | Moonbah River |
| Subdivision Type1: | Country |
| Subdivision Name1: | Australia |
| Subdivision Type2: | State |
| Subdivision Name2: | New South Wales |
| Subdivision Type3: | Region |
| Subdivision Name3: | Australian Alps (IBRA), Snowy Mountains |
| Subdivision Type5: | Local government area |
| Subdivision Name5: | Snowy Monaro Regional Council |
| Length: | 32km (20miles) |
| Source1: | Snowy Mountains, Great Dividing Range |
| Source1 Location: | near Mount Terrible |
| Source1 Elevation: | 1360m (4,460feet) |
| Mouth: | confluence with the Snowy River |
| Mouth Location: | near Jindabyne |
| Mouth Elevation: | 853m (2,799feet) |
| River System: | Snowy River catchment |
| Tributaries Left: | Tulon Creek |
| Tributaries Right: | Grosses Plain Creek |
| Custom Label: | National park |
| Custom Data: | Kosciuszko NP |
| Extra: | [1] |
The Mowamba River, a perennial river of the Snowy River catchment, is located in the Snowy Mountains region of New South Wales, Australia.
The Mowamba River rises within The Snowy Mountains Range, part of the Great Dividing Range, contained within the Kosciuszko National Park, on the northeastern slopes of Mount Terrible. The river flows generally south then northeast by east, joined by two minor tributaries, before reaching its confluence with the Snowy River approximately south of Jindabyne, in the Jindabyne Gorge. The river descends over its course.[1]
Water from the Mowamba River is diverted to Jindabyne Dam via the Mowamba weir and aqueduct; that is part of the Snowy Mountains Scheme.
On 28 August 2002, the Mowamba Weir was "turned out" allowing environmental water to over top the weir. Environmental water releases occurred until January 2006. Since January 2006, environmental water releases to the Snowy River have occurred from Jindabyne Dam as the infrastructure upgrades to the dam wall had been completed.