Armidale is on the banks of Dumaresq Creek, in the Northern Tablelands in the New England region about midway between Sydney and Brisbane at an altitude (980 m AHD) ranging from 970 metres at the valley's floor to 1,110 metres above sea level at the crests of the hills. A short distance to the east of Armidale are heavily forested steep gorges dropping down to the eastern coastal plain. Large parts of the highlands are covered by Palaeozoic aged metamorphosed sedimentary rocks. Intruding into these meta-sediments are granite plutons which decompose to form sandy soil, slightly deficient in nutrients. There are also basalt flows which are more fertile for the soil substrates. Those areas away from the deep gorge country tend to display gently undulating terrain mainly used for pastures and where granites occur the areas are usually covered in bushland.