Nature conservation

Biodiversity Reform

Cobar Peneplain Bioregion

The Cobar Peneplain Bioregion lies in central NSW west of the Great Dividing Range. It is one of only two of the state's bioregions to occur entirely within the state, the other being the Sydney Basin Bioregion. The bioregion extends from just south of Bourke to north of Griffith, has a total area of 7,334,664 hectares, and occupies 9.2 per cent of the state.

The bioregion is bounded to the north and east by the Darling Riverine Plains Bioregion, to the east by the South Western Slopes Bioregion, and by the Riverina and Murray Darling Depression Bioregions to the south and west. The northwestern part of the Cobar Peneplain Bioregion falls in the Western Division.

The Cobar Peneplain Bioregion encompasses the townships of Cobar, Nymagee, Byrock, Girilambone, Lake Cargelligo and Rankins Springs with Louth and Tottenham lying at its boundary.

In the north of the bioregion, Yanda Creek, a major stream, discharges directly into the Darling River which meanders across the bioregional boundary in the northwest. In the east, several small streams flow occasionally into the Bogan River as it crisscrosses the eastern boundary of the bioregion (Morgan and Terrey 1992).

The Lachlan River traverses the bioregion in the south with contributions of minor runoff from smaller streams (Morgan and Terrey 1992). The bioregion lies wholly within the Murray-Darling Basin and includes the Barwon, Macquarie, Yanda, Darling, Lachlan and Murrumbidgee catchments.

Cobar Peneplain - climate
See average climate figures for the bioregion.

Cobar Peneplain - landform
Get topography, geology, geomorphology, geodiversity and soil information.

Cobar Peneplain - biodiversity
Find out about plant communities, flora, fauna and wetlands in the bioregion.

Cobar Peneplain - regional history
Learn about Aboriginal cultural heritage in this area, together with the history of the region since colonisation.

Cobar Peneplain - bioregional-scale conservation
Find out how much of this bioregion is protected by parks and reserves, and learn about other conservation programs in the region.

Cobar Peneplain - subregions
Get basic information about the finer-scale subregions that make up this bioregion.

Cobar Peneplain - references
See a list of publications and websites which can provide more information about this bioregion.

Cobar Peneplain - maps and printable versions
Download and print all the information in this bioregion overview as an Acrobat (PDF) document. View maps showing rivers, topography, vegetation, conservation reserves and subregions.

Page last updated: 26 April 2016