Wirratcha Parish is a remote rural locality and civil parish of Evelyn County in far northwest New South Wales,Map of the County of Evelyn : Western Division. located at 29°38′31″S 142°01′00″E.
Geography The geography of the parish is mostly the flat, arid landscape of the Channel Country. The parish has a Köppen climate classification of BWh (hot desert). (direct: Final Revised Paper) The nearest town is Tibooburra to the east, which is on the Silver City Highway and lies south of the Sturt National Park.Olive Downs campground.
History The parish is on the traditional lands of the WadigaliAboriginal Heritage , Corner Country History & Heritage. and to a lesser extent Karenggapa,Tindale, Norman Barnett (1974). "Karenggapa (NSW)". Aboriginal Tribes of Australia: Their Terrain, Environmental Controls, Distribution, Limits, and Proper Names. Australian National University Press. p196. Aboriginal peoples.David R Horton (creator), © Aboriginal Studies Press, AIATSIS, and Auslig/Sinclair, Knight, Merz, 1996.
In April 1529 Spain and Portugal divided the world between themselves with the Treaty of Zaragoza. Unknown to the Yarli peoples, their dividing line passed through what would become the parish.
Charles Sturt passed through the area and camping for six months at nearby Preservation Creek, in 1845.Sturt's Central Australian Expedition .
In 1861 the Burke and Wills expedition passed to the east.The Burke and Wills Expedition .
Gold was discovered nearby in the 1870s.
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