The area defined is 850m x 450m x 500m. That is somewhere in the neighbourhood of 200 million cubic meters, likely representing somewhere north of 500 million tonnes of rock. "80%" of the defined mineralized zones to date represent only 3.6 million tonnes of rock. I daresay it is not feasible to move 500 million tonnes of rock to get at 3.6 million tonnes of ore. That is why high grade veins are generally extracted underground. Today's news release certainly implies these conclusions already, as does the entire history of exploration at Windfall Lake.
This does not mean that a significant portion of the mining will not eventually become open-pit, perhaps even encompassing at least parts of this already defined resource. That is what the new drilling campaign is designed to find out.
Johnny