The end of the Blue Mountains

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Originally Posted by 303gunner

If you want to define the region called the "Blue Mountains", it's pretty much the area enclosed by the Cox's River to the west, Warragamba River/Dam to the south, Hawkesbury/Nepean to the east and the Capertee/Colo Rivers to the north.

But, if you want to define the Great Dividing Range, it's somewhat further west of that. While the Blue Mountains do form a geographic barrier to the west of Sydney, they are not part of the Great Dividing Range as all the watercourses within the area flow east to the Pacific. As the Cox's River flows > Warragamba Dam >Nepean River > Hawkesbury River >Pacific, then Hartley is east of the Range. Mt Lambie/Rydal is the watershed where the rivers drain west into the Fish River > Macquarie and eventually the Murray/Darling. A bit further north, both Wolgan and Capertee Rivers flow > Colo River > Hawkesbury. You have to go west of Capertee to find the westward flowing Turon River. Oddly, this part of the GDR is rolling countryside and doesn't appear quite as "Divisive" as the Blue Mountains. The GDR runs through the Wollemi Wilderness, with some watercourses flowing east into the Macdonald or Hunter Rivers, while the western side drains into the Cudgegong or Macquarie Rivers.

As you head further North in NSW, even significant hills like the Barrington Tops aren't actually part of the GDR, as all the rivers and streams around the Tops flow into the Hunter. It is the Liverpool Ranges that separate the eastern flowing streams from those that go into the Murray Darling system.

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Must have different text books to when I went to school



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 the Liverpool Range, Mount Royal Range and the Monaro District


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 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.[1] Rivers that flow north into 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 Brisbane River, Burdekin River, Clarence River, Hastings River, Hawkesbury River, Hunter River, Macleay River, Mary River, Richmond River, Shoalhaven River and the Snowy River. Those that flow south to the ocean in Victoria include the Snowy, Cann, Tambo, Mitchell, Latrobe, Thomson, Yarra, Werribee, Hopkins and Glenelg rivers

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Originally Posted by THE BOOGER

Must have different text books to when I went to school



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 the Liverpool Range, Mount Royal Range and the Monaro District


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 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.[1] Rivers that flow north into 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 Brisbane River, Burdekin River, Clarence River, Hastings River, Hawkesbury River, Hunter River, Macleay River, Mary River, Richmond River, Shoalhaven River and the Snowy River. Those that flow south to the ocean in Victoria include the Snowy, Cann, Tambo, Mitchell, Latrobe, Thomson, Yarra, Werribee, Hopkins and Glenelg rivers

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Not forgetting of course the New England district (which I'm sure is a part of the GDR) which drains into such eastern flowing rivers as the Manning, Hastings, Macleay and Clarence.

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Originally Posted by olbod

Up untill now I hadn't considered looking about the mountain areas down near the border. My interest has been the deserts. I want to own a Camel.


Cheers.

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Spent some time in deserts, the Tanami, [ not really a desert, Tanami means short bush, or similar, ] out past Ayres Rock to Giles, down the Gunbarrel highway, whilst serving in Darwin, the only good thing about deserts , lack of people, be careful with the camel, they can kick from just about anywhere, and they bite. Bob

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Originally Posted by THE BOOGER

Must have different text books to when I went to school



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 the Liverpool Range, Mount Royal Range and the Monaro District

The Great Dividing Range creates the drainage basins of the Australian East coast drainage division and....... the westerly Murray-Darling Basin which flow inland, away from the coast into the interior plains.

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So which rivers in the Blue Mountains and the Barrington Tops flow to the west of the divide? None! They are completely on the eastern side of the "range". Even if you were to include Kanangra Boyd and Jenolan areas in the "Blue Mountains", the rivers still flow to the east.

Not sure what you mean about only flowing to the west the GDR has water flowing both east and west:)

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Originally Posted by THE BOOGER

Not sure what you mean about only flowing to the west the GDR has water flowing both east and west:)

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Exactly, and that's why it's called the DIVIDING range

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Originally Posted by 303gunner

So which rivers in the Blue Mountains and the Barrington Tops flow to the west of the divide? None! They are completely on the eastern side of the "range". Even if you were to include Kanangra Boyd and Jenolan areas in the "Blue Mountains", the rivers still flow to the east.

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So the Lachlan, Fish, Macquarie and Cudgegong Rivers drain to the east do they? :confused:
I must check the operation of my compass. :angel:

Yep, technically the continental divide reaches west of me here as our little river flows into the Hunter, but if I go north over the Liverpool Range 10km from me all water flows west.
The Liverpool Range goes west then south through Coolah Tops, etc, so technically that's the division, all water courses on the west of Barrington still flow into the Hunter and east !

Barrington, the Mt Royals, etc could be considered part of the Great Divide but they sure as hell are a long way east of the continental divide, and IIRC the sign on Nowlands Gap as you traverse the Liverpool Range here at Murrurundi says "part of the Great Divide" or somesuch.

This is an interesting site, click on a subject in the left hand box, lots of info for a rainy day, Bob

Great Dividing Range - Australia: The Land Where Time Began


austhrutime.com/great_dividing_range.htm‎

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Sep 30, 2011 - Great Dividing Range About80 Ma. This range extends along the entire east coast of Australia. It arose in the Late Cretaceous, making possible ...

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Originally Posted by Xtreme

So the Lachlan, Fish, Macquarie and Cudgegong Rivers drain to the east do they? :confused:
I must check the operation of my compass. :angel:

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No, they all flow West. Your compass is fine, it's your map that is wrong as none of those rivers are in the Blue Mountains. They're all in the Central Tablelands, which is where the GDR really is.

I was always told at school and according the interweb the Blue mountains are part of the Great Dividing Range :confused: