Yilgarn River, Western Australia


Yilgarn River is a river in the eastern Wheatbelt region of Western Australia. It is a sub-catchment of the Avon River, and has an area of. At its junction with Lockhart River, their combined flow passes through a hydrological-topographical pinch-point at 'Caroline Gap'.
It originates in the region east from Southern Cross and west from Coolgardie. From Lake Seabrook and Lake Deborah it flows generally west, skirting north of Bullfinch, then to the south-west past Merredin and south of Kellerberrin to its confluence with the Lockhart River at 'Caroline Gap'.

Catchment rivers

The Yilgarn River catchment area is drained by the rivers:
Studies in 2008-09 gave the average annual total flow for the Yilgarn River as 4 GL. Streamflow salinity in the Yilgarn River is about two-thirds that of sea-water.

Waterway assessments

The river was extensively surveyed in 2008/2009.