Mining schemes



From Colombo ratner plumstead common to the highway 4 along the route, the distance is the rolling hills, the river palms, banana Lin and paddy fields, everywhere is visible in the low small stones left. The miners' mining method and two thousand years ago one: a two meters square shaft to cross the topsoil, soil layer, humus soil and NiCeng sand five soil layer, to get to contain the gravel jewelry stones. Then start to the excavation, shaft and tunnel support only wood and bamboo. Miners from the tunnel dug out of the gravel in basket, engineer-in-chief with to the ground for cleaning, filter and sorting. The only modern progress is pumped from artificial into diesel engine drive pump. The ground with dozens of meters deep underground communication channels, but is a roots slender tube. Because the sand is each month in the election, pile up local general are painted with a skull to deter the enters.