Bill Wilson climbing "Singularity", Booroomba Rocks, near Canberra, 1973
Photo: Bob Warner
Bill Wilson climbing "Singularity", Booroomba Rocks, near Canberra, 1973
Photo: Bob Warner
Bill Wilson climbing "Ephemeros", Booroomba Rocks, near Canberra, 1974
Photo: Bob Warner or Lesley Hodges