Mcdonald River

The Mcdonald River, also known as the Macdonald River and locally as the Collett River, is a river in Far North Queensland, Australia.

The headwaters of the river rise in the foothills of the Great Dividing Range on Cape York Peninsula. Formed by the confluence of two unnamed creeks, the river flows in a westerly direction eventually discharging to the Gulf of Carpentaria, north of. The river descends 14 m over its 12 km course.

The river has a catchment area of 2723 km2 of which an area of 105 km2 is composed of estuarine wetlands.