Indian Rock Art

Major Tributaries

Cooby & Oakey Creeks, QLD

Head:
Toowoomba Elevation626 m
Mouth:
Loudoun Weir Elevation333 m
Length167.3 km  Drop293 m  Slope1.75‰

Fairly minor tributary but this often floods when there is high rainfall around Toowoomba.

River

Maranoa River, QLD

Head:
Mt Moffatt Elevation715 m
Mouth:
Lake Kajarabie Elevation209 m
Length~500 km  Drop506 m  Slope1.01‰

From its source in Carnarvon National Park, the Maranoa River flows south past Mitchell into Lake Kajarabie where it joins the Balonne River.

River

Barwon River, NSW/QLD

Head:
Mungindi Elevation168 m
Mouth:
Culgoa River Elevation116 m
Length729 km  Drop52 m  Slope0.07‰

The Barwon starts at the confluences of the Weir River into the Macintyre River. Likewise, the Darling forms at the Culgoa River confluence with the Barwon.

River

Warrego River, NSW/QLD

Head:
Carnarvon Range Elevation618 m
Mouth:
Near Bourke Elevation103 m
Length884 km  Drop515 m  Slope0.58‰

Another river originating in the Carnarvon Range.

River

Bogan River, NSW

Head:
Parkes Elevation296 m
Mouth:
Culgoa Confluence Elevation110 m
Length~450 km  Drop186 m  Slope0.41‰

The Bogan actually joins the Barwon just a few kilometres upstream of the Culgoa and Barwon confluence that marks the start of the Darling River.

Dry riverbed

Paroo River, NSW/QLD

Head:
Mariala Nat. Park Elevation367 m
Mouth:
Wilcannia Elevation72 m
Length786 km  Drop295 m  Slope0.38‰

Last of the major tributaries that feed the Darling.

While the above rivers all flow directly into the system, there are a number of important feeder rivers into the tributaries themselves including:

River

Moonie River, QLD

Head:
Tara Elevation339 m
Mouth:
Mogil Mogil Elevation147 m
Length~542 km  Drop192 m  Slope0.35‰

Moonie (Mooni) River basin is relatively flat and lacks any significant features of note.

River

Weir River, QLD

Head:
Cecil Plains Elevation401 m
Mouth:
Mungindi Elevation168 m
Length~470 km  Drop233 m  Slope0.50‰

The Weir, Macintyre, Dumaresq, Severn are collectively known as the Border Rivers.

River

Dumaresq River, NSW/QLD

Head:
Stanthorpe Elevation372 m
Mouth:
Boggabilla Elevation225 m
Length~214 km  Drop147 m  Slope0.69‰

Part of the river course marks the boundary between QLD and NSW.

River

Macintyre River, NSW/QLD

Head:
Mt Rumbee Elevation1,346 m
Mouth:
Mungindi Elevation168 m
Length~319 km  Drop1,178 m  Slope3.69‰

The confluence with the Weir River forms the Barwon River.

River

Gwydir River, NSW

Head:
Uralla Elevation785 m
Mouth:
Collarenebri Elevation142 m
Length~488 km  Drop643 m  Slope1.32‰

The Gwydir River has an undefined path through the wetlands and floodplains west of Moree and it rarely reaches the Barwon outside of flood events. Some of its waters reach the Barwon via the Mehi River.

River

Namoi River, NSW

Head:
Niangala Elevation701 m
Mouth:
Walgett Elevation131 m
Length~708 km  Drop570 m  Slope0.81‰

The Namoi River flows from western slopes of the Moonbi Range at the convergence of the Macdonald River and Boundary Creek and is joined by twenty-seven named tributaries on its way to the Barwon.

River

Castlereagh River, NSW

Head:
Warrumbungles Elevation885 m
Mouth:
Walgett Elevation128 m
Length~541 km  Drop757 m  Slope1.40‰

The Castlereagh, Macquarie and Bogan rivers run "more or less parallel" across the rich soils of the alluvial plains.

River

Macquarie River, QLD

Head:
Bathurst Elevation667 m
Mouth:
Walgett Elevation120 m
Length~850 km  Drop547 m  Slope0.64‰

Macquarie River is the tenth longest river in the country at about 800 km. High flows often get absorbed by the Macquarie Marshes just before the river meets the Barwon.

Catchments

Map

The Balonne catchment that is part of the northern Murray-Darling Basin. This is the main catchment for the upper rivers. Multiple catchments feed the Barwon River which is the main driver of the Darling River.

For up to date information on the catchments see the Murray-Darling Basin Authority website for catchments and water storage levels.

Catchment Effects Water Storage Contribution
to MDB
Condamine–Balonne Condamine, Balonne, Culgoa Beardmore Dam (94 GL), Leslie Dam (106 GL), Cooby Dam (21 GL) 8.5%
Moonie & Border Rivers Barwon Pindari Lake (312 GL), Glenlyon Lake (261 GL), Lake Coolmunda (69 GL) 5.8%
Namoi & Gwydir Barwon Keepit Dam (426 GL), Split Rock Dam (397 GL), Chaffey Dam (101 GL), Copeton Dam (1,364 GL) 6.6%
Macquarie–Castlereagh Barwon Burrendong (1,190 GL), Windamere (353 GL), Oberon (45 GL), Ben Chifley (31 GL), Suma Park (18 GL) 8.4%
Warrego & Paroo Darling Cunnamulla Weir (4.8 GL) < 1%
Barwon–Darling Darling Lakes Menindee, Cawndilla, Pamamaroo and Wetherell (1,730 GL) 2.8%

Map of the Main Tributaries