 Chudleigh lies 64 kilometres (40 mi) west of Launceston and 7 kilometres (4.3 mi) east of Mole Creek in northern Tasmania, Australia. The town is in the fertile Chudleigh Valley that is bounded by the Gog and Magog ranges, to the north, and the Great Western Tiers, to the south-west. The town itself is just south of the Lobster rivulet, a tributary of the Mersey river which also runs near the town to the north. The land around the town is mostly suited to grazing, intensive grazing in some areas, though some is marginal cropping land that requires careful crop rotation interspersed with seasons where the land is left fallow. The hills of the area have prominent basalt, limestone and dolerite depending on location. The fertile flats are of alluvial origin with Permian era sediments that have formed mudstone and sandstone. Some areas are notably frosty in winter and experience occasional snowfall.
