The Ganges Basin is a part of the Ganges-Brahmaputra-Meghna (GBM) basin draining 1,086,000 square kilometres in Tibet, Nepal, India and Bangladesh.To the north, the Himalaya or lower parallel ranges beyond form the Ganges-Brahmaputra divide. On the west the Ganges Basin borders the Indus basin and then the Aravalli ridge. Southern limits are the Vindhyas and Chota …

The Sydney Basin is an interim Australian bioregion and is both a structural entity and a depositional area, now preserved on the east coast of New South Wales, Australia and with some of its eastern side now subsided beneath the Tasman Sea.The basin is named for the city of Sydney, on which it is centred.. Around 5,000 metres (16,000 ft) thick, the Sydney Basin …