O.k., but 3 grams was, I believe, the average, with some portions of core going over an ounce per ton. And, Hay Mountain ain't that big!!!
High or bonanza grades on one part of the mountain are likely to be encountered elsewhere, especially when that notion is supported by geophysics. Take another look at ZTEM, GeoChem, and AeroMag results.
Oh, and it you can find it, look at the 3-D drill result models for the Pebble deposit showing the layering/divisions between certain concentrations of metals. ...sorry, I've lost my links.
VP