The Einasleigh 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 ...
in
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. When combined with the
Gilbert River, the river system is the largest river system in northern Australia.
Course and features
The Einasleigh River rises in the locality of
Lyndhurst in the
Einasleigh Uplands
The Einasleigh Uplands is an interim Australian bioregion, with vegetation consisting of savanna and woodland located on a large plateau in inland Queensland, Australia. It corresponds to the Einasleigh Uplands savanna ecoregion, as identified ...
within 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 ...
, draining the western slopes 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 ...
below Mount Remarkable. The river flows generally north, northwest and then west. The river is joined by 33
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 ...
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 ...
including the
Copperfield and
Etheridge Rivers and numerous creeks before reaching its
confluence
In geography, a confluence (also ''conflux'') occurs where two or more watercourses join to form a single channel (geography), channel. A confluence can occur in several configurations: at the point where a tributary joins a larger river (main ...
with the Gilbert River north of . The Einasleigh River has a
catchment area
A catchment area in human geography, is the area from which a location, such as a city, service or institution, attracts a population that uses its services and economic opportunities. Catchment areas may be defined based on from where people are ...
of . Following its confluence, the Gilbert River spills into a vast
estuarine
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 ...
delta approximately wide
that largely consists of tidal flats and
mangrove
A mangrove is a shrub or tree that grows mainly in coastal saline water, 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 a ...
swamp
A swamp is a forested wetland.Keddy, P.A. 2010. Wetland Ecology: Principles and Conservation (2nd edition). Cambridge University Press, Cambridge, UK. 497 p. Swamps are considered to be transition zones because both land and water play a role in ...
s across the
Gulf Country
The Gulf Country or North West Queensland is the region of woodland and savanna grassland surrounding the Gulf of Carpentaria in north western Queensland and eastern Northern Territory on the north coast of Australia. The region is also ca ...
. The Einasleigh River descends over its
course
Course may refer to:
Directions or navigation
* Course (navigation), the path of travel
* Course (orienteering), a series of control points visited by orienteers during a competition, marked with red/white flags in the terrain, and corresponding ...
.
[
East of the river is crossed by the Einasleigh River Bridge that carries the ]Gulf Developmental Road
Gulf Developmental Road is an Australian highway linking the Cairns, Queensland, Cairns and Normanton, Queensland, Normanton regions in northern Queensland, Australia. It is the only sealed (Asphalt concrete, asphalt) road linking these two reg ...
.
The Einasleigh River is a seasonal stream and discharge can vary greatly depending on the intensity of the monsoon
A monsoon () is traditionally a seasonal reversing wind accompanied by corresponding changes in precipitation but is now used to describe seasonal changes in Atmosphere of Earth, atmospheric circulation and precipitation associated with annu ...
. When combined with the Gilbert River, the Einasleigh River has the sixth-highest discharge of any river in Australia, slightly less than that of the Potomac in North America. In an intense wet season
The wet season (sometimes called the rainy season or monsoon season) is the time of year when most of a region's average annual rainfall occurs. Generally, the season lasts at least one month. The term ''green season'' is also sometimes used a ...
, however, the discharge can be as large as that of the Fraser River
The Fraser River () is the longest river within British Columbia, Canada, rising at Fraser Pass near Blackrock Mountain (Canada), Blackrock Mountain in the Rocky Mountains and flowing for , into the Strait of Georgia just south of the City of V ...
in Canada, and in a mild wet season like that of 1951–52, the discharge can be as little as one tenth of the long term mean
A mean is a quantity representing the "center" of a collection of numbers and is intermediate to the extreme values of the set of numbers. There are several kinds of means (or "measures of central tendency") in mathematics, especially in statist ...
. It is estimated that runoff from the combined Gilbert-Einasleigh River system totals about 2.2 percent of the total runoff from Australia.[
]
See also
*
References
{{Rivers of Queensland
Rivers of Far North Queensland