The Sydney Basin is a geological formation located in New South Wales, Australia. It is characterized by a series of sedimentary rock layers that were deposited over millions of years. This basin is home to the city of Sydney and extends from the Blue Mountains in the west to the Pacific Ocean in the east. The Sydney Basin is significant for its rich natural resources, including coal and sandstone. It also features diverse ecosystems, with various habitats supporting unique flora and fauna. The basin's geological history provides valuable insights into the Earth's past, making it an important area for scientific research and education.