The upper reaches of the biggest river in Western Australia’s south were explored during the Upper Blackwood Expedition in November 1992.


Kim Epton, Darren Austin, Tony Overstone, Frank Berloth, Dave Elson, Grant Pouw Bray, Gary Evans, John Pouw Bray, Adrian Griffin, John Miles, Geoff Hall, Rin Rutherford,
 Peter Hink.