Namoi River
| Namoi River | |
|---|---|
| Etymology | Aboriginal: 1. derived from the name for a species of acacia; 2. derived from ngamu, the Gamilaraay word for "breast" |
| Location | |
| Country | Australia |
| State | New South Wales |
| Region | IBRA: New England Tablelands |
| District | Northern Tablelands, North West Slopes |
| Municipalities | Narrabri, Walgett, Gunnedah |
| Physical characteristics | |
| Source | Moonbi Range, Great Dividing Range |
| • location | Near Niangala |
| • elevation | 708 m (2,323 ft) |
| 2nd source | Macdonald River |
| Source confluence | Boundary Creek |
| Mouth | Confluence with the Barwon River |
• location | Near Walgett |
• elevation | 130 m (430 ft) |
| Length | 708 km (440 mi) |
| Basin size | 43,000 km2 (17,000 sq mi) |
| Discharge | |
| • average | 25 m3/s (880 cu ft/s) |
| Basin features | |
| River system | Barwon River, Murray–Darling basin |
| Reservoirs | Lake Keepit, Baraneal Lagoon |
The Namoi River, a major perennial river that is part of the Barwon catchment of the Murray–Darling basin, is located in the Northern Tablelands and North West Slopes districts of New South Wales, Australia.
The Namoi River rises on the western slopes of the Moonbi Range and Great Dividing Range, near Niangala, at the convergence of the Macdonald River and Boundary Creek, and flows generally west, joined by twenty-seven tributaries, including the Peel, Manilla and Mooki rivers, before reaching its confluence with the Barwon River, near Walgett.
The Namoi River descends 578 metres (1,896 ft) over its 708 kilometres (440 mi) course; passing near the towns of Gunnedah, Boggabri, Narrabri, Wee Waa and Walgett. The flow of the river is impounded by Lake Keepit and Baraneal Lagoon.