Complex Orebody The North Rackla's complex orebody is overlain by thick overburden, sporadic grades and narrow widths.
"...In many cases diamond core drilling will not enable resource estimation beyond the inferred and indicated categories...A measured resource must be based on strong geological and grade continuities. Narrow veins, generally less than 3 m wide, are complex geological phenomena, which commonly display unpredictable geometry and grade distribution. Variations in structural continuity, dip, strike, width, mineralogy and specific gravity are common."(citation omitted)