The Coolgardie River is a seasonal river located in the eastern part of Western Australia. It flows through the Coolgardie region, which is known for its rich mining history. The river is an important water source for the surrounding areas, especially during the wet season when it can swell significantly. The river's course is approximately 100 kilometers long, eventually joining the Gascoyne River. The Coolgardie River is characterized by its intermittent flow, meaning it may not have water year-round. Its ecosystem supports various plant and animal species, contributing to the biodiversity of the region.