From the feasability report... "Drilling in 1998 by RGMC explored shallow mineralization immediately east of the Mina Grande Fault based on mineralization of surface outcrops."
Table 12-1 Aurcana Corporation - Shafter Silver Mine Exploration Drill Hole Summary Drill Hole Type, Number Of Holes, Total Footage, Number Of Samples
Block Groups III, IV & V RG (RGMC surface holes) 89 6,208 783 The 89 holes averaged 70 Feet deep. It appears that the 3 million silver ozs reference came from these drill results. This is all non compliant ore not in the Shafter resources and feasability report numbers.