|River mouth||Indian Ocean|
|Length||60 kilometres (37 mi)|
|Basin size||40 square kilometres (15 sq mi)|
The middle reaches passes through land cleared for agriculture, especially viticulture.
There is a weir across the river just above the town. The mouth of the river is a small estuary, closed to the ocean by a sandbar that opens only seasonally.
- Western Australia. Dept. of Environment; Western Australia. Whicher Water Resource Management Committee (2004), The way forward for water resource management in the Whicher region, The Dept, retrieved 17 December 2013
- Western Australia. Margaret River Catchment Management Plan Working Group; Water Authority of Western Australia (1993), Margaret River and Ten Mile Brook catchment management plan 1993-1998, Water Authority of Western Australia, ISBN 978-0-7309-5263-3
- Hanran-Smith, Genevieve; Milton, Kristin; Western Australia. Water and Rivers Commission; Natural Heritage Trust (Australia); Geographe Catchment Council; Cape to Cape Catchments Group; Cape to Cape Catchments Group (W.A.) (2003), Margaret River action plan : 2003, Water and Rivers Commission, ISBN 978-1-920687-40-3
- Western Australia. Dept. of Environment; Western Australia. Dept. of Environment. Water Resources Division; Western Australia. Dept. of Environment. Water Resources Division (2005), Margaret River Catchment Area (including Ten Mile Brook Catchment) drinking water source protection plan : Margaret River, Prevelly, Gnarabup and Cowaramup town water supply, Dept. of Environment, ISBN 978-0-7309-7544-1
- Brearley, Anne (2005). Ernest Hodgkin's Swanland: Estuaries and coastal lagoons of Southwestern Australia. University of Western Australia Press. ISBN 1-920694-38-2.
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