As per the report filed, there is 11,445 feet of drilling that pierces the 3950 bench, of which only 822 feet have detectable gold.
Of the 822 feet that had gold in them, 434 feet had 0.010 Oz/ton or less (0.342 Grams, which with todays cost are probably not even economic).
Of the 822 feet total that had gold in them, 552 feet had 0.030 Oz/ton ( 1.02 Grams / ton) or less.
Of the 822 feet total that had gold in them, 647 feet had 0.070 Oz/ton (2.4 Grams/ton) or less.
So keep in mind there are 10,623 feet of drilling reported that have no grade.