New Vaal Colliery, is an open cast mine in the northern Free State along the meandering Vaal River. The Colliery is a historically bord and pillar underground mine and the sole provider of coal to the Lethabo Power Station. ...

English: Continued population and economic growth within South Africa have led to increased water use by industry, agriculture, mining, domestic users and other uses over the past few decades. This increased usage has come ...