Treen Brook, near Pemberton, has long been an important feeder stream for the Warren River. In recent years the banks of the brook had suffered serious erosion and a large washout had developed, preventing fish passage. Remedial work in 2012 was able to restore fish passage as well as using tree stumps to stabilise the stream bed.   

Organisation	Recfishwest, West Australian Trout and Freshwater Angling Association (WATFAA), West Australian Department of Fisheries
Contact	Michael Tropiano (RecfishWest), [email protected]
Funding Body	WA Recreational Fishing Initiatives Fund