It’s always been envisaged that the initial mining would be open cut with underground later in .... Many earlier references to that .
Some time ago , pre this confirmation of massive sulphide ore , I posted the link below containing EMfrom circa 2004 .
Now that Duggers has proven his sulphide model , maybe the potential at SB becomes a little clearer At a regional scale ..... and guess who holds the ground along strike to the East !
Its still only potential but the odds of success appear to have improved dramatically with the evidence from hole 3 .
New higher tech/resolution EM may well provide a much clearer view of the stratigraphy in the pictures below .... and they already look impressive to me :
https://www.asx.com.au/asxpdf/20041126/pdf/3nvk0bcxbr74z.pdf
