The topography is flat with a Köppen climate classification of BsK (Hot semi arid).[9] The climate is characterised by hot summers and mild winters. The
annual average rainfall is 350 mm, although this is highly variable.[10]
^[cartographer] C.A. Orwin, [https://nla.gov.au/nla.obj-233873384/view Map of the County of Rankin : Western Division, Land Districts of Bourke, Cobar and Wilcannia, N.S.W. 1912 (New South Wales. Department of Lands Title, Sydney N.S.W. 1914).
^[cartographer] C.A. Orwin, [https://nla.gov.au/nla.obj-233873384/view Map of the County of Rankin : Western Division, Land Districts of Bourke, Cobar and Wilcannia, N.S.W. 1912 (New South Wales. Department of Lands Title, Sydney N.S.W. 1914).