Mining in Sierra Leone WikipediaHistory. Organised mining began in the 1920s with bauxite first being recorded in 1920 along the Falaba to Waia road. Diamonds were found in the early 1930s, fro

The world’s biggest iron ore mines Mining TechnologyCarajas, Brazil The Vale-owned Carajas mine in the state of Para in Northern Brazil is the world’s biggest iron ore...Read More...True gi

10 Biggest Gold Mines in the World Here is a list of the 10 biggest gold mines in the world, starting with the biggest.Top 10 biggest gold mines Mining TechnologyIndonesia is home to the world'

Porgera Gold Mine WikipediaThe Porgera Gold Mine is a large gold and silver mining operation in Enga province, Papua New Guinea (PNG), located at the head of the Porgera Valley.Top 10 biggest g