Walker River (Northern Territory)
| Walker | |
| River | |
| Name origin: Thomas Walker | |
| Country | Australia |
|---|---|
| Territory | Northern Territory |
| Tributaries | |
| - left | Strawbridge Creek, Laurie Creek, Marura River |
| - right | Conway Creek |
| Source | Mitchell Ranges |
| - location | Arnhem Land, Australia |
| - elevation | 315 m (1,033 ft) |
| Mouth | Blue Mud Bay |
| - location | Gulf of Carpentaria, Australia |
| - coordinates | 13°35′21″S 135°49′58″E / 13.58917°S 135.83278°ECoordinates: 13°35′21″S 135°49′58″E / 13.58917°S 135.83278°E |
| Length | 119 km (74 mi) |
| Basin | 9,731 km2 (3,757 sq mi) |
| Discharge | |
| - average | 106 m3/s (3,743 cu ft/s) |
 Location of the Walker River mouth in the Northern Territory
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The Walker River is a river in the Northern Territory, Australia.
The headwaters of the river are in the Mitchell Ranges and the river flows in a southerly direction between Mount Ramsay and Mount Fleming and through Fairy Glen then down onto a plain then cuts though Bath Range under Mount Rankine and veering eastward. The river then passes the Aboriginal communities of Marrkalawa and Andanangki the past the Coast Range and discharges into Blue Mud Bay and the Gulf of Carpentaria and the Arafura Sea.
The river catchment occupies an area of 9,731 square kilometres (3,757 sq mi) and is wedged between the Koolatong River catchment to the north, the Goyder River catchment to the west and the Roper River catchment to the south. It has a mean annual outflow of 3,350 gigalitres (4.382×109 cu yd),
The estuary formed at the river mouth is in near pristine condition with a tidal delta. The estuary at the river mouth occupies an area of 29.5 hectares (73 acres) of open water. It is river dominated in nature with a tide dominated delta with a single channel and is surrounded by an area of 30.9 hectares (76 acres) covered with mangroves.
The traditional owners of the area are the Nunggubuju peoples, who have inhabited the area for thousands of years.
Named by the explorer, David Lindsay, during his expedition through Arnhem Land in 1883. Lindsay named it after Thomas Walker, the leader of the Blue Mud Bay prospecting party, who was murdered by Aborigines in the area in 1875.
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