| Towamba River Kiah River[1] | |
|---|---|
| Location | |
| Country | Australia |
| State | New South Wales |
| Region | South Eastern Highlands (IBRA), South Coast |
| Municipality | Bega Valley |
| Physical characteristics | |
| Source | South Coast Range, Great Dividing Range |
| • location | near Coolangubra Mountain |
| • elevation | 533 m (1,749 ft) |
| Mouth | Tasman Sea, South Pacific Ocean |
• location | Nullica Bay, Twofold Bay |
| Length | 86 km (53 mi) |
| Basin size | 1,026 km2 (396 sq mi) |
| Depth | |
| • average | 1.1 m (3 ft 7 in) |
| Basin features | |
| Tributaries | |
| • left | Back Creek (Bega Valley, New South Wales), New Station Creek, Mataganah Creek, Stony Creek (Towamba River), Jingo Creek |
| • right | Basin Creek, Reedy Creek (Bega Valley, New South Wales), Wog Wog River, Pericoe Creek, Camping Ground Creek, Stanleys Creek, Shelleys Creek |
| [2][3][1] | |
The Towamba River is an open mature wave dominated barrier estuary[3] or perennial river,[1] located in the South Coast region of New South Wales, Australia.
The Towamba River rises near Coolangubra Mountain, below Mount Marshall on the eastern slopes of the South Coast Range, part of the Great Dividing Range, approximately 9 kilometres (5.6 mi) north of Coolangubra Mountain. The river flows generally southeast and then northeast, joined by twelve tributaries including the Mataganah Creek and Wog Wog River, before reaching its mouth, emptying into Nullica Bay, within Twofold Bay, and spilling into the Tasman Sea of the South Pacific Ocean, east of Boydtown.[1] The river descends 533 metres (1,749 ft) over its 86 kilometres (53 mi) course.[2]
The catchment area of the river is 1,026 square kilometres (396 sq mi) with a volume of 2,050 megalitres (72×106 cu ft) over a surface area of 2.0 square kilometres (0.77 sq mi), at an average depth of 1.1 metres (3 ft 7 in).[4]
At the locality of Kiah, the Princes Highway crosses the Towamba River.
The river flows through extensive parts of the South East Forest National Park in its upper reaches. In its lower reaches, the river forms the northern boundary of Mount Imlay National Park.
