CALL him Rambo. His face is tanned by the burning sun and his body is thick-set. Dressed in a singlet and faded blue jeans, he’s all muscles. He walks slowly to the old, heavy-duty Toyota hardtop, a picture of ruggedness with a powerful machine.

The muscular man isn’t an action movie star. He’s a coolie transporting gold-bearing earth at a smallholder mining operation at Ratatotok in the North Sulawesi district of South Minahas