The Porgera Gold Mine, run by Barrick Gold, is a mine near the Strickland, which is the source of environmental concerns in the area.
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Both the Strickland and the Ok Tedi Rivers have been the source of environmental controversy due to tailings waste from the Porgera Mine and the Ok Tedi Mine, respectively.
In 1935 he was chosen by Lieutenant-Governor Hubert Murray to lead an expedition into the unexplored Great Papuan Plateau between the Strickland and Purari Rivers, with Louis James O'Malley as his second-in-command, along with 10 police and 28 carriers.