Avoca River
| Avoca (Natte yaluk, Boca, Bangyeno Banip, Djub-djub-galg, Witchelliba, Yangeba) |
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| River | |
 Avoca River at Charlton
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| Country | Australia |
|---|---|
| State | Victoria |
| Regions | Riverina bioregion (IBRA), Central Highlands, Wimmera |
| Local government areas | Buloke, Gannawarra |
| Part of | North–central catchment, Murray-Darling basin |
| Tributaries | |
| - left | Glenlogie Creek, Number Two Creek, Mountain Creek (Victoria), Cherry Tree Creek, Smoky Creek, Tarpaulin Creek, Campbell Creek (Victoria) |
| - right | Sandy Creek (Victoria), Brown Hill Creek (Victoria), Fentons Creek (Victoria), Sandy Creek (Victoria), Yeungroon Creek, Mosquito Creek (Victoria) |
| Towns | Avoca, Logan, Charlton, Quambatook |
| Source | Pyrenees Ranges, Great Dividing Range |
| - location | below Mount Lonarch |
| - elevation | 307 m (1,007 ft) |
| - coordinates | 37°14′03″S 143°24′21″E / 37.23417°S 143.40583°E |
| Mouth | Lake Bael Bael, Kerang Lakes |
| - location | Kerang |
| - elevation | 74 m (243 ft) |
| - coordinates | 35°41′57″S 143°44′32″E / 35.69917°S 143.74222°ECoordinates: 35°41′57″S 143°44′32″E / 35.69917°S 143.74222°E |
| Length | 270 km (168 mi) |
| Depth | 2 m (7 ft) |
| Basin | 12,352 km2 (4,769 sq mi) |
| Discharge | |
| - average | 5 m3/s (177 cu ft/s) |
 Course of the Avoca River
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The Avoca River, an inland intermittent river of the north–central catchment, part of the Murray-Darling basin, is located in the lower Riverina bioregion and Central Highlands and Wimmera regions of the Australian state of Victoria. The headwaters of the Avoca River rise on the northern slopes of the Pyrenees Range and descend to flow into the ephemeral Kerang Lakes.
The Avoca River drains a substantial part of central Victoria. The river rises at the foot of Mount Lonarch near the small town of Amphitheatre, and flows north for 270 kilometres (170 mi) joined by thirteen minor tributaries and through the towns of Avoca, Charlton and Quambatook. Although the Avoca River basin is part of the Murray-Darling basin, the Avoca River does not empty into the Murray. Nowhere a large stream, it dwindles as it flows north, eventually terminating in the Kerang Lakes, a network of ephemeral swamps west of Kerang and about 20 kilometres (12 mi) south of the Murray River.
Although the Avoca River has a substantial 12,000-square-kilometre (4,600 sq mi) catchment area, the fifth largest in Victoria, most of that area is on the northern plains where rainfall averages only about 350 millimetres (14 in) per year, and where there is little runoff as the terrain is very flat. The mean annual runnoff of 137 gigalitres (30×109 imp gal; 36×109 US gal) per annum accounts for only 0.67% of Victoria's runoff. Most of the water flowing in the Avoca River originates in the narrow upper portion of the catchment area, where rainfall averages about 600 millimetres (24 in) per year, most of it falling in the winter and spring.
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Wikipedia