OK, what I did was print out this graphic from BBR's website. Then I drew 3D volume blocks over the strike. Using vernier calipers, I measured the blocks and determined their size relative to the 500 meter key in the lower right. Blocks A,B,C, D and F measured out to a total volume of 69,315,625 cubic meters.
69,315,625 x 2.91/31= 6,506,724 @ 1g/t Au
Block G was a guess because there are drill results there yet. I made it half as deep the other strikes and total volume for block G was 36,093,750 cubic meters.
36,093,750 x 2.91/31= 3,338,155
This a bad photoshop represntation of the method I used. I hope it comes out right.