The Ok Tedi Mine in Papua New Guinea
The first hint of gold and copper in the Ok Tedi River of central New Guinea was found by Lawrence Hargrave in July 1876. At the furthest point on the Ok Tedi reached by the little steam launch Neva, while the crazed and ill expedition leader Luigi D’Albertis lay incapacitated, Hargrave went ashore and panned “a speck of gold, also a specimen of copper”.