 In those days, the maps of Borneo were of a very poor quality.The pilot Squadron Leader Graham Pockley dfc and bar was leader of the expedition and of the RAAF Consolidated Liberator that carried Harrisson and seven other Z Force operatives behind the Japanese lines would have seen a thick green blanket of tropical forest for miles around.However, the pale sandstone peaks of Batu Lawi stood out like a lighthouse and allowed the commandos to be sure they would land somewhere close to the settlement of Bario, and the Kelabit people they sought.