kieran,it'd be a matter of how many suitable seams and tenements...

kieran,
it'd be a matter of how many suitable seams and tenements are available around Infrastructure,don't you reckon?
Suitable in Depth and Width along with Resource Size available.
This could cause reason for "Competition" with the CSM'ers?

but it is so that the CSM'ers can "drain" a prospective Open Cut shallow seam leaving the Coal for conventional or new'n'improved Above Ground Exploitation,hey?
If so,this negates the statement that UGC is 18times more efficient or at least really qualifies this.
One would have to look into actually WHO?Which Scientists? came up with this 18x "statistic"?
Russian?Ubekistanis?the inventors of UGC?

I don't know.Has there been any,say,CSIRO statement on the availability of suitable UGC sites worldwide?Especially close to necessary Infrastructure?

cheers.