A drainage divide , water divide , ridgeline , watershed , water parting or height of land is elevated terrain that separates neighboring drainage basins . On rugged land, the divide lies along topographical ridges , and may be in the form of a single range of hills or mountains , known as a dividing range . On flat terrain, especially where the ground is marshy , the divide may be difficult to discern.
44-823: The Seaview Range , part of the Great Dividing Range , is a mountain range located west of Ingham in North Queensland , Australia. Much of the range is covered by rainforest and parts of it are protected in the Girringun National Park and the Wet Tropics of Queensland world heritage area. The range is the headwaters for the Burdekin River , the Herbert River and contains Wallaman Falls . The Seaview Range
88-934: A key problem in such canals is ensuring a sufficient water supply. Important examples are the Chicago Portage , connecting the Great Lakes and Mississippi by the Chicago Sanitary and Ship Canal , and the Canal des Deux Mers in France, connecting the Atlantic and the Mediterranean. The name is enshrined at the Height of Land Portage on the route from the Great Lakes in the Atlantic drainage basin to
132-476: A water source for important reservoirs and water supply projects such as the Upper Nepean Scheme , Snowy Mountains Scheme and Warragamba Dam . The Bradfield Scheme has been mooted as a way to transport water from the Wet Tropics of Queensland in the coastal northeast of Far North Queensland via a series of Dams & Tunnels , southwest to inland dryer regions, including a tunnel through
176-767: Is only one major road crossing the highlands from north to south, the Great Alpine Road . Parts of the highlands consisting of relatively flat and, by Australian standards, well-watered land were developed for agricultural and pastoral uses. Such areas include the Atherton Tableland and Darling Downs in Queensland, and the Northern Tablelands , Southern Highlands and Southern Tablelands in New South Wales . Other parts of
220-806: Is the bifurcation of the Orinoco in the north of South America , whose main stream empties into the Caribbean , but which also drains into the South Atlantic via the Casiquiare canal and Amazon River . Since ridgelines are sometimes easy to see and agree about, drainage divides may form natural borders defining political boundaries, as with the Royal Proclamation of 1763 in British North America which coincided with
264-529: Is used in Canada and the United States to refer to a drainage divide. It is frequently used in border descriptions, which are set according to the "doctrine of natural boundaries ". In glaciated areas it often refers to a low point on a divide where it is possible to portage a canoe from one river system to another. Drainage divides can be divided into three types: A valley-floor divide occurs on
308-680: The Urstromtäler , for example, between Havel and Finow in the Eberswalde Urstromtal . In marsh deltas such as the Okavango , the largest drainage area on earth, or in large lakes areas, such as the Finnish Lakeland , it is difficult to find a meaningful definition of a watershed. A bifurcation is where the watershed is effectively in a river bed, in a wetland, or underground. The largest watershed of this type
352-753: The Australian Alps . The central core of the Great Dividing Range is dotted with hundreds of peaks and is surrounded by many smaller mountain ranges or spurs, canyons , valleys and plains of regional significance. Some of the major plains include the High Plains of South-Eastern Australia, the Southern Highlands, the Central Highlands and Bogong High Plains of Victoria. Other tablelands considered part of
396-746: The Black Sea and the Rienz into the Adriatic . Settlements are often built on valley-floor divides in the Alps. Examples are Eben im Pongau , Kirchberg in Tirol and Waidring (In all of these, the village name indicates the pass and the watershed is even explicitly displayed in the coat of arms). Extremely low divides with heights of less than two metres are found on the North German Plain within
440-649: The Calder Highway , the Western Highway , and the Murray Valley Highway traverse parts of the range. Much of the range lies within a succession of national parks and other reserves . Most of the national parks are listed below, and there are almost double that amount of state forests. In 2009 as part of the Q150 celebrations, the Great Dividing Range was announced as one of
484-743: The Great Australian Bight via the coastal Lake Alexandrina ; the eastern half of the Lake Eyre basin in east central Australia (the Cooper Creek and Warburton River systems in Central /western South West Queensland and eastern Far North of South Australia) drain southwestwards into the endorheic Kati Thanda–Lake Eyre ; the numerous rivers of western Cape York Peninsula in northeastern Australia ( North / Far North Queensland ) drain westwards or northwestwards directly into
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#1732786557413528-479: The Gulf of Carpentaria . The sharp rise between the coastal lowlands and the eastern uplands has affected Australia's climate , mainly due to orographic precipitation , and these areas of highest relief have revealed an impressive gorge country. Areas to the east of the mountain range in southern NSW usually experience a Föhn effect , which is a dry wind originating from the Great Dividing Range that abruptly raises
572-633: The Latrobe Valley and Wilsons Promontory ). Whereas on the downwind (eastern) slopes, Cooma , Omeo , Goulburn , Bowral , Bombala , Nimmitabel , and Canberra , are warmer and drier relative to altitude. Moreover, Oberon , Shooters Hill and Sunny Corner are on the crest of the ranges and thus exposed from all directions, hence their evenly spread rainfall. The main ski resorts in New South Wales, such as Thredbo Village , Perisher and Charlotte Pass , lie transitionally between
616-604: The Liverpool Range , Mount Royal Range and the Monaro District . Whilst some of the peaks of the highlands reach respectable heights of a little over 2,000 metres (6,600 ft), the age of the range and its erosion mean that most of the mountains are not very steep, and virtually all peaks can be reached without mountaineering equipment. In some areas, such as the Snowy Mountains , Victorian Alps ,
660-486: The Q150 Icons of Queensland for its role as a "location". Drainage divide A triple divide is a point, often a summit , where three drainage basins meet. A valley floor divide is a low drainage divide that runs across a valley , sometimes created by deposition or stream capture . Major divides separating rivers that drain to different seas or oceans are continental divides . The term height of land
704-591: The Scenic Rim and the eastern escarpments of the New England region, the highlands form a significant barrier. The eastern escarpment is the site of many spectacular waterfalls which were formed by rivers plunging off the tablelands. In other areas the slopes are gentle and in places the range is barely perceptible. Well known passes on the range include Coxs Gap , Cunninghams Gap , Dead Horse Gap , Nowlands Gap , and Spicers Gap . Major cities located on
748-571: The Shoalhaven River . Those that flow south, primarily through Victoria, include the Snowy , Cann , Tambo , Mitchell , Latrobe , Thomson , Yarra , Werribee , Hopkins and Glenelg rivers. At some high hill passes the range provides cool sites appropriate for vineyards . The engineers of early rail passages across the Great Dividing Range needed to find low sections of the range to cross, as well as suitable, "low" gradient paths up
792-789: The South Pacific and the Tasman Sea , or southward into the Bass Strait . Rivers west of the Dividing Range drain in various westerly directions according to latitudes: the Murray–Darling basin in southeastern Australia ( Darling Downs /eastern South West Queensland , West/Central New South Wales , Northern Victoria and the Murraylands / Riverland region of southeastern South Australia ) drain southwestwards into
836-750: The Torres Strait off the northern tip of Cape York Peninsula , running the entire length of the eastern coastline through Queensland and New South Wales , then turning west across Victoria before finally fading into the Wimmera plains as rolling hills west of the Grampians region . The width of the Range varies from about 160 km (100 mi) to over 300 km (190 mi). The Greater Blue Mountains Area , Gondwana Rainforests and Wet Tropics of Queensland World Heritage Areas are located in
880-423: The east coast of Australia and forms the fifth-longest land-based mountain chain in the world , and the longest entirely within a single country. It is mainland Australia 's most substantial topographic feature and serves as the definitive watershed for the river systems in eastern Australia, hence the name. The Great Dividing Range stretches more than 3,500 kilometres (2,175 mi) from Dauan Island in
924-694: The Blue Mountains were later named after each of these men. This was the start of the development of the agricultural districts of inland New South Wales . A road was built to Blaxland by convicts within six months. Easier routes to inland New South Wales were discovered towards Goulburn to the southwest, and westwards from Newcastle . Subsequent explorations were made across and around the ranges by Allan Cunningham , John Oxley , Hamilton Hume , Paul Edmund Strzelecki , Ludwig Leichhardt and Thomas Mitchell . These explorers were mainly concerned with finding and appropriating good agricultural land. By
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#1732786557413968-513: The Great Divide is only a slight rise in the surrounding topography. Knowing that local Aboriginal people had already established routes crossing the range and by making use of Aboriginal walking trails, a usable ridge-top route was finally discovered by Europeans directly westward from Sydney across the Blue Mountains to Bathurst by an expedition jointly led by Gregory Blaxland , William Lawson and William Charles Wentworth . Towns in
1012-551: The Great Dividing Range are the Atherton Tableland , Canberra wine region and the Southern Tablelands . The Dandenong Ranges , Barrington Tops , Bunya Mountains , Blue Mountains , Liverpool Range , McPherson Ranges and the Moonbi Range are some of the smaller spurs and ranges that make up the greater dividing range. Other notable ranges and tablelands which form part of the Great Dividing Range include
1056-766: The Great Dividing Range into the Flinders River then a tunnel into the Torrens Creek in the White Mountains National Park then flows south into Thompson River / Cooper Creek , part of the Eyre Basin . Many other variations have been proposed. The Great Dividing Range creates the drainage basins of the Australian south-east coast drainage division and the Australian north-east coast drainage division , whose water flows to
1100-403: The Great Dividing Range is defined by the watershed boundary between the drainage basins of river systems east (the coastal or rainward side) and west (the inland or leeward side) of it. The higher and more rugged parts of the "range" do not necessarily form part of the crest of the range, but may be branches and offshoots from it. The term "Great Dividing Range" may refer specifically to
1144-759: The Murray–Darling Basin from Victoria include the Goulburn , Mitta Mitta , Kiewa , Ovens , King , Loddon and Campaspe rivers. Rivers that flow east into the Pacific Ocean include the Annan River , Barron River , Brisbane River , Burdekin River , Burnett River , Clarence River , Daintree River , Fitzroy River , Hastings River , Hawkesbury River , Hunter River , Karuah River , Macleay River , Mary River , Pascoe River , Richmond River and
1188-515: The Range. The highest place in Australia, the 2,228 m (7,310 ft) Mount Kosciuszko , resides in the Snowy Mountains portion of southern Great Dividing Range. The Dividing Range does not consist of a single continuous mountain chain , but is rather a combined complex ( cordillera ) of mountain ranges , plateaus , hilly upland areas and escarpments with an ancient and complex geological history . The physiographic division name for
1232-404: The air temperature in the lee of that mountain range and reduces atmospheric moisture. This dry wind, which elevates fire danger in the warm months, occurs because of the partial orographic obstruction of relatively damp low-level air and the subsiding of drier upper-level air in leeward of the mountains. The drier air is then heated more because of the adiabatic compression as it comes down
1276-799: The bottom of a valley and arises as a result of subsequent depositions, such as scree , in a valley through which a river originally flowed continuously. Examples include the Kartitsch Saddle in the Gail valley in East Tyrol , which forms the watershed between the Drau and the Gail, and the divides in the Toblacher Feld between Innichen and Toblach in Italy , where the Drau empties into
1320-521: The coastal and inland regions. Many descendants of these nations still exist today, and some remain the traditional owners and custodians of their lands. After British colonisation in 1788, the ranges were an obstacle to exploration and settlement by the British settlers. Although not high, parts of the highlands were very rugged. Crossing the Blue Mountains was particularly challenging due to
1364-465: The east coast and into the Pacific Ocean, Tasman Sea , and Bass Strait with the westerly Murray–Darling basin which flow inland, away from the coast into the interior plains. Some of the rivers which flow west of the ranges includes the Condamine River , Flinders River , Herbert River , Lachlan River , Macdonald River , Macintyre River and Namoi River . Rivers that flow north into
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1408-553: The highlands are too rugged for agriculture and have been used for forestry. Many parts of the highlands which were not developed are now included in National Parks . All of mainland Australia 's alpine areas, including its highest mountain, Mount Kosciuszko (2,228 metres or 7,310 feet AHD ), are part of this range, called the Main Range . The highest areas in southern New South Wales and eastern Victoria are known as
1452-408: The landmass is called the East Australian Cordillera . In some places the terrain is relatively flat, consisting of very low hills. Typically the highlands range from 300 to 1,600 metres (980 to 5,250 ft) in height. The mountains and plateaus, which consist of limestones , sandstone , quartzite , schists and dolomite , have been created by faulting and folding processes. The crests of
1496-477: The late 1830s, the most fertile rangelands adjacent to the mountain ranges had been explored, appropriated from the traditional inhabitants and some settled. These included the Gippsland and Riverina regions in the south, up to the Liverpool Plains and the Darling Downs in the north. Various road and railway routes were subsequently established through many parts of the ranges, although many areas remain remote to this day. For example, in eastern Victoria there
1540-676: The lee slopes, forming a rain shadow . In the cool season, the Great Dividing Range would shield much of the southeast (i.e. Sydney , Central Coast , Hunter Valley , Illawarra , the ACT , the Monaro and South Coast ) from south-westerly cold fronts that originate from the Southern Ocean , which bring chilling rains, sleet and snow to the upwind side of the ranges, such as on the western Central Tablelands , South West Slopes and Snowy Mountains regions – all which have relatively wetter winters. Upwind locations include Crookwell , Batlow , Tumut , Corryong , Bright , Beechworth , Eildon , Tolmie and those in West Gippsland (namely
1584-430: The leeward and windward side (the former town being more leeward and the latter more windward). Although they receive substantial precipitation from over the crest of the ranges, they lack the persistent cloud cover which characterises truly windward locations on the western face, which are; Cabramurra , Kiandra , Mount Buller , Falls Creek , Mount Hotham , Mount Buffalo and Mount Baw Baw . The Great Dividing Range
1628-485: The mistaken idea that the creeks should be followed rather than the ridges, and almost impenetrable, labyrinthine, sandstone mountains. The Blue Mountains actually lie to the east of the watershed that divides the Hawkesbury - Nepean system and the Murray-Darling system , the true Great Dividing Range. The watershed in this area lies to the west of Lithgow , passing near the locality of Mt Lambie and village of Capertee . There, as in some other places in New South Wales,
1672-861: The mountains on either side. Rail passages include: Many of Australia's highways such as the Alpine Way , Great Alpine Road , Snowy Mountains Highway , Hume Highway , Illawarra Highway , Northern Highway , Melba Highway , Maroondah Highway , Midland Highway , Pyrenees Highway , Sunraysia Highway , Monaro Highway , Olympic Highway , Newell Highway , Lachlan Valley Way , Barton Highway , Federal Highway , Kings Highway , Great Western Highway , Mitchell Highway , Mid-Western Highway , Castlereagh Highway , Mulligan Highway , Capricorn Highway , Cunningham Highway , Gore Highway , Flinders Highway , Gregory Highway , Peak Downs Highway , Dawson Highway , New England Highway , Golden Highway , Bruxner Highway , Gwydir Highway , Oxley Highway , Warrego Highway , Summerland Way , Waterfall Way , Thunderbolts Way ,
1716-510: The ridgeline of the Appalachian Mountains forming the Eastern Continental Divide that separated settled colonial lands in the east from Indian Territory to the west. Another instance of a border matching a watershed in modern times involves the western border between Labrador and Quebec , as arbitrated by the privy council in 1927. Drainage divides hinder waterway navigation . In pre-industrial times, water divides were crossed at portages . Later, canals connected adjoining drainage basins;
1760-403: The towns/cities located on or near the range include: The lower reaches are used for forestry, an activity that causes friction with conservationists. The range is also the source of virtually all of eastern Australia's water supply, both through runoff caught in dams, and throughout much of Queensland, through the Great Artesian Basin . Valleys along the chain of mountains have yielded
1804-432: The upland areas of the range include Canberra , Toowoomba and the outer suburbs of Sydney , Melbourne , Brisbane , Gold Coast and Cairns in north Queensland. Many towns and cities are located on the range, and also in lowland areas and foothills adjacent to the highlands. There is a strong natural history and cultural attachment to the Dividing Range region in towns and on many, sometimes remote, landholdings. Some of
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1848-446: The watershed crest of the range, or to the entire upland complex including all of the hills and mountains between the east coast of Australia and the central plains and lowlands. At some places it can be up to 400 km (249 mi) wide. Notable ranges and other features which form part of the range complex have their own distinctive names. As a rule of thumb , rivers east/southeast of the Dividing Range drain directly eastward into
1892-545: Was first explored by Frederick Manson Bailey in 1873. It was nominated for listing on the National Heritage Register in 1978. This Far North Queensland geography article is a stub . You can help Misplaced Pages by expanding it . 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 roughly parallel to
1936-511: Was formed during the Carboniferous period —over 300 million years ago—when Australia collided with what are now parts of South America and New Zealand. The range has experienced significant erosion since. (See Geology of Australia .) For tens of thousands of years prior to British colonisation the ranges were home to various Aboriginal Australian nations and clans. Evidence remains in some places of their traditional way of life including decorated caves, campsites and trails used to travel between
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