Mate, back-filling stopes is always a preferred option - provides significant cost-savings and can provide ground stability. It depends on the orebody width and the mining sequence.
Generally you would need to develop to the base of a mining block and mine a bottom-up sequence - cashflow would be restricted to level development ore before production kicked in.
Don't know about DOM, but sounds like a nice wide orebody that can fit in all the waste generated - no wonder the cash costs are $315/oz
Large ore tonnages per vertical metre - easier, lower cost and less riskier to mine than narrow orebodies.
DOM and TAM are different beasts
TAM Price at posting:
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