Corvus Gold, PEA done by Forte Dynamics gives us some insights .
http://www.corvusgold.com/projects/mother-lode/preliminary-economic-assessment/
http://www.corvusgold.com/_resources/pdf/CorvusMLP-TechReport2020-Final201120.pdf
Note cut-off grade for heap-leach material at 0.06 g/t.
Even at a strip ratio of 3.7:1 ... this Corvus Gold Project has an AISC of USD $677.
Korbel I expect to have a strip ratio at 1:1.
The Corvus project PEA has a CAPEX of USD $406M, but I think that is because much of their ore is refractory. Make the CAPEX for the mill expensive.
I'm not aware of there being any refractory mineralisation at Korbel.
Ann: CEO Letter to Shareholders, page-43
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