This paper refers to the open cut mining practice developed at Western Mining Corporation's Kalgoorlie Gold Operations (K.G.O.). Mining activity was centred at two areas, namely W.M.C.'s Siberia "Sand King" and"Missouri" open cuts plus W.M.C.'s "Great Boulder" and K.M.A.'s "Horshoe" and "Morrison - Hannan's Star" open cuts in Fimiston._x000D_
Kalgoorlie Gold Operations was set up initially to look after W.M.C.'s open cut interests in and about the Kalgoorlie area._x000D_
The first mine commenced was, the Sand King open cut, approx 75 km NW of Kalgoorlie. it was here that the requirement for a highly selective form of mining first became apparent.