The Dumaresq River is a river located in the northeastern region of New South Wales, Australia. It flows for approximately 200 kilometers and serves as a natural border between New South Wales and Queensland. The river is a tributary of the Macintyre River and is known for its scenic landscapes and diverse ecosystems. The Dumaresq River is significant for both environmental and agricultural purposes. It supports various wildlife habitats and provides water for irrigation in the surrounding areas. The river's catchment area is vital for local farming, contributing to the economy of the New England region.