The Mitchell River is a

river A river is a natural stream of fresh water that flows on land or inside Subterranean river, caves towards another body of water at a lower elevation, such as an ocean, lake, or another river. A river may run dry before reaching the end of ...

Far North Queensland Far North Queensland (FNQ) is the northernmost part of the States and territories of Australia, Australian state of Queensland. Its largest city is Cairns, Queensland, Cairns and it is dominated geographically by Cape York Peninsula, which stret ...

, Australia. The river rises on the

Atherton Tableland The Atherton Tableland is a fertile plateau, which is part of the Great Dividing Range in Queensland, Australia. It has very deep, rich basaltic soils and the main industry is agriculture. The principal river flowing across the plateau is the B ...

about northwest of

Cairns Cairns (; ) is a city in the Cairns Region, Queensland, Australia, on the tropical north east coast of Far North Queensland. In the , Cairns had a population of 153,181 people. The city was founded in 1876 and named after William Cairns, Sir W ...

and flows about northwest across

Cape York Peninsula The Cape York Peninsula is a peninsula located in Far North Queensland, Australia. It is the largest wilderness in northern Australia.Mittermeier, R.E. et al. (2002). Wilderness: Earth's last wild places. Mexico City: Agrupación Sierra Madre, ...

from Mareeba to the

Gulf of Carpentaria The Gulf of Carpentaria is a sea off the northern coast of Australia. It is enclosed on three sides by northern Australia and bounded on the north by the eastern Arafura Sea, which separates Australia and New Guinea. The northern boundary ...

. The river's watershed covers an area of . The Mitchell has the state's largest discharge, at annually, but is intermittent and may be dry for part of the year. Lake Mitchell is the main water storage facility on the river. It was named by Ludwig Leichhardt on 16 June 1845 after Sir Thomas Mitchell while he was on his overland expedition from Moreton Bay to

Port Essington Port Essington is an inlet and historic site located on the Cobourg Peninsula in the Garig Gunak Barlu National Park in Australia's Northern Territory. It was the site of an early attempt at British settlement, but now exists only as a remot ...

. It may have been previously named the Vereenighde River in 1623 by Dutch merchant and navigator Jan Carstensz.

Biophysical aspects

The Mitchell River and its tributaries have for a long time carved their way westwards through the rugged, weathered highlands of the

Great Dividing Range The Great Dividing Range, also known as the East Australian Cordillera or the Eastern Highlands, is a cordillera system in eastern Australia consisting of an expansive collection of mountain ranges, plateaus and rolling hills. It runs roughl ...

, carrying away sediments to be deposited in the broad

floodplains A floodplain or flood plain or bottomlands is an area of land adjacent to a river. Floodplains stretch from the banks of a river channel to the base of the enclosing valley, and experience flooding during periods of high discharge.Goudie, ...

and

wetland A wetland is a distinct semi-aquatic ecosystem whose groundcovers are flooded or saturated in water, either permanently, for years or decades, or only seasonally. Flooding results in oxygen-poor ( anoxic) processes taking place, especially ...

s of the Gulf Savannah country. The rivers' waters "pulse" annually with monsoonal rains, seasonally collecting water from across the local

tropical rainforest Tropical rainforests are dense and warm rainforests with high rainfall typically found between 10° north and south of the Equator. They are a subset of the tropical forest biome that occurs roughly within the 28° latitudes (in the torrid zo ...

s in the highlands to the east; the wet

sclerophyll Sclerophyll is a type of vegetation that is adapted to long periods of dryness and heat. The plants feature hard leaves, short Internode (botany), internodes (the distance between leaves along the stem) and leaf orientation which is parallel or ...

forests in the central uplands; a variety of

woodland A woodland () is, in the broad sense, land covered with woody plants (trees and shrubs), or in a narrow sense, synonymous with wood (or in the U.S., the '' plurale tantum'' woods), a low-density forest forming open habitats with plenty of sunli ...

s plus

savannah A savanna or savannah is a mixed woodland-grassland (i.e. grassy woodland) biome and ecosystem characterised by the trees being sufficiently widely spaced so that the canopy does not close. The open canopy allows sufficient light to reach th ...

in the western plains; annually flooding with freshwater, the tidal plains,

estuaries An estuary is a partially enclosed coastal body of brackish water with one or more rivers or streams flowing into it, and with a free connection to the open sea. Estuaries form a transition zone between river environments and maritime environm ...

, and

mangroves A mangrove is a shrub or tree that grows mainly in coastal saline or brackish water. Mangroves grow in an equatorial climate, typically along coastlines and tidal rivers. They have particular adaptations to take in extra oxygen and remove sal ...

of the lower Mitchell and coastal plains. From source to

mouth A mouth also referred to as the oral is the body orifice through which many animals ingest food and animal communication#Auditory, vocalize. The body cavity immediately behind the mouth opening, known as the oral cavity (or in Latin), is also t ...

, the Mitchell River is joined by 34

tributaries A tributary, or an ''affluent'', is a stream or river that flows into a larger stream ('' main stem'' or ''"parent"''), river, or a lake. A tributary does not flow directly into a sea or ocean. Tributaries, and the main stem river into which the ...

including the McLeod River, Hodgkinson River, St George River, Dry River, Little Mitchell River,

Walsh River The Walsh River is a river located on the Cape York Peninsula of Far North Queensland, Australia. The headwaters of the river rise in the locality of Watsonville on the Atherton Tableland approximately north of Herberton and then flow in ...

, Lynd River, Palmer River and Alice River.

Protected area Protected areas or conservation areas are locations which receive protection because of their recognized natural or cultural values. Protected areas are those areas in which human presence or the exploitation of natural resources (e.g. firewood ...

s within the Mitchell River catchment include the Hann Tableland, Mitchell-Alice Rivers, Chillagoe-Mungana Caves, part of Bulleringa to the south, and most of the Forty Mile Scrub

national park A national park is a nature park designated for conservation (ethic), conservation purposes because of unparalleled national natural, historic, or cultural significance. It is an area of natural, semi-natural, or developed land that is protecte ...

Fauna and flora

Being a large river system, the Mitchell River may contain within its catchment one of Australia's most ecologically diverse aquatic systems consisting of a rich variety of both wet and dry tropical monsoonal habitats. The catchment ecology as a whole has been generally described as follows:

The vegetation in the Mitchell River Catchment area ranges from the World Heritage Wet Tropic rainforest on the eastern highlands to the open savannah on the western and lower Mitchell plains. The extensive mangroves and lagoon systems at the delta of the Mitchell River are recognised worldwide. The permanent waters in the upper catchment are associated with springs and water holes...

More specifically, while this ecologically diverse river system is relatively poorly studied, it is known to contain at least 18 rare, endangered or vulnerable animal species including the golden-shouldered parrot, the Gouldian finch and the northern bettong. The mouth of the river lies in the Gulf Plains Important Bird Area.

Towns

The major towns in the river's catchment are Kowanyama, Chillagoe, Dimbulah, Mount Carbine and Mount Molloy. Other smaller towns in the Mitchell River catchment include Mutchilba and Almaden.

History

Kunjen (also known as Koko Wanggara, Ngundjan and Olkola) is a language of Western Cape York. The Kunjen language region includes the landscape within the local government boundaries of Kowanyama Community Council and Cook Shire Council. Yir Yiront (also known as Yiront, Jirjoront, Yir-yiront, and Kokomindjan) is an

Australian Aboriginal language The Indigenous languages of Australia number in the hundreds, the precise number being quite uncertain, although there is a range of estimates from a minimum of around 250 (using the technical definition of 'language' as non-mutually intellig ...

. Its traditional language region is in Western Cape York within the local government areas of Aboriginal Shire of Kowanyama and Shire of Cook, in the catchments of the Coleman River and Mitchell River. Following the removal of Aboriginal people from their traditional lands, it is also spoken in Pormpuraaw and Kowanyama.

References

External links

Maps

Mitchell River Watershed Management Group's Map of the Mitchell River's catchment areaMitchell River Watershed Management Group's Map of Towns, Communities, Stations and Riverways in the CatchmentMitchell River Watershed Management Group's Map of the Biophysical Regions through which the Mitchell River passesQueensland Department of Natural Resources and Water Map of Mitchell River Catchment waterways (including Water Resource Plan boundaries)

Organisations

Official homepage of Mitchell River Watershed Management Group Inc

Videos

Our World 2 Video & Brief on local Aboriginal Knowledge of SeaLevel Rise in Mitchell River catchment, including footage and the telling of some traditional knowledge for Mitchell River
Accessed 28 January 2009 {{Rivers of Queensland Rivers of Far North Queensland Gulf of Carpentaria