The Galilee Basin is a large inland geological basin in the western Queensland region of Australia. The Galilee Basin is part of a larger Carboniferous to Mid-Triassic basin system that contains the Cooper Basin, situated towards the south-west of the Galilee Basin, and the Bowen Basin to the east. The Galilee Basin covers a total area of approximately . The basin is underlain by the Carboniferous Drummond Basin and overlain by the Cretaceous – Jurassic Eromanga Basin. The Triassic and younger sediments of the Galilee Basin form the basal sequence of the Great Artesian Basin drainage basin. Physical geography The Galilee Basin spans elements of the upper Lake Eyre drainage catchment, Bulloo river basin and Murray–Darling Basin and the adjacent eastern highlands. The basin also extends into the upper coastward Burdekin river basin and Fitzroy river basin to the north-east and east and the Gulf of Carpentaria to the north-west. This geographic complexity ensures that the Galilee Basin spans a number of physiographic regions with a relatively complex pattern in the eastern highlands and headwaters. Lake Buchanan and Lake Galilee within the Galilee Basin are classified as inland wetlands, with Lake Buchanan described as both a seasonal/intermittent saline lake and a seasonal saline marsh and Lake Galilee also as a seasonal/intermittent saline lake and as a seasonal/intermittent freshwater pond and marsh. The climate of the Galilee Basin is generally hot and dry throughout, becoming more extreme towards the west. Monthly mean temperatures show daytime summer temperatures are mostly in the mid-30s °C with winter overnight temperatures most commonly between 5 and 12 °C. The temperature records from the past 36 years shows values ranging from −2 °C to 44 °C. ‘Hot days’, with temperatures exceeding 35 °C, can be expected up to 74 to 101 days per year. ‘Frost days’ with screen temperatures below 2 °C can be expected up to 1.4 to 10.4 days per year. Relative humidity is highest in the mornings and during February, while the lowest is in the mid to late spring mornings and afternoons. The annual rainfall within the Galilee Basin ranges between 150 mm and 1,477 mm, with an average rainfall of between 492 mm and 610 mm depending on location. Rainfall in December through March accounts for approximately 65 per cent of annual mean rainfall. The wettest month on average is January and the driest month is May. Human geography The Galilee