The Namoi River is a significant waterway located in the New England region of New South Wales, Australia. It is approximately 390 kilometers long and flows through several towns, including Narrabri and Gunnedah. The river is a tributary of the Barwon River and plays a crucial role in the local ecosystem and agriculture. The Namoi River is known for its diverse wildlife and is an important source of irrigation for surrounding farmland. It supports various agricultural activities, including cotton and grain production. The river's health is vital for maintaining the region's economy and environment.