Overburden is indeed, a mining term. In mining, it is most commonly the rock, soil, and ecosystem that lies above an ore body. Overburden is also called waste or spoil.
If Mabwe had done a feasibility study they would know what I was talking about valentine has shown me it ! or even had any idea how to mine ! would be a bonus ! this is not gold mining or chrome !
They were mining underground and could collapse while working from on top !
Because you are doing open cast mining the weather plays a part anyone is can not realize this does not know what they are talking about !
Market Data 
Markets 
AI
