The Murray-Darling Basin is a large geographical area in southeastern Australia, covering parts of the states of New South Wales, Victoria, and South Australia. It is named after the Murray River and the Darling River, which are the two main rivers in the region. The basin is crucial for agriculture, providing water for irrigation and supporting various farming activities. This area is home to diverse ecosystems and wildlife, including many unique species. The Murray-Darling Basin Authority manages the water resources to ensure sustainable use and conservation. The basin faces challenges such as drought, climate change, and competing water demands from agriculture and urban areas.