A violent beginning — Mt Canobolas erupted over a period of about a million years in the mid to late Miocene epoch 13 to 11 million years ago and the province covers ~825 km2 and radiates some 30 to 50 km from the summit of 1,397 m altitude. Mt Canobolas is a prominent ‘landlocked island’[inselberg] … Continue reading Geology and Geo-heritage