Based on the LaCasse target map( http://www.copperfoxmetals.com/i/maps/Porphyry-Target-Identified-in-2014.jpg ) they are trying to extend the good intercepts in holes 422, 426 and 427 northward. It's unlikely the holes will be close enough to calculate even inferred resource, which is fine since this is an exploration area right now. There can only be good reasons why Teck has chosen to drill up that way. They won't be drilling anything in this environment that doesn't support a business objective.