Hey CJR,

First of all I think that you may have slightly miscategorized the vein type nature of this deposit probably because of the relatively novel nature of its origin. The higher grade and lower grade sections of each parallel vein in the deposit are actually part of the same system.

Let's use Hoov's crack in the windshield analogy as representing the quartz intruding the diorite.

Now imagine that in addition to the main crack there are thousands of hairline cracks that extend in all lateral directions out from the main crack to a distance of 3-5 times the width of the main crack. That image defines the vein structure. Now imagine, for the sake of this discussion that the main windshield crack with all of its hairline fractures continues from surface to depths below 1000 m. All the cracks are filled with quartz. If you sample a plane perpendicular to the quartz vein structure you will be more likely to find gold in the main crack simply because there is more quartz/kg of drill core. This is the area from the bulk sample that gave the highest grade values. When you sample through the "hairy" part of the vein you will get lower grades (less quartz/kg drill core) but because that part of the vein still contains economical grades of gold it is included in the grade estimation and becomes part of the eventual resource estimate.

Tilsley has always felt that this entire system needs to be mined underground rather than by open pit.

I would be very happy with drill results showing 1.5-2.0 g/tonne based simply on the amount of quartz they are uncovering on their properties.

Hope this helps.

Scott