The Motherlode claim block is located just East of the Copper Mountain block and covers three historic producing Cu-Au skarn deposits from which a total of 4.2 million tonnes at a grade of 0.8% Cu and 1.3 g/t Au was produced in the periods 1896-1918 and 1956-1962.
The Company conducted exploration on the Motherlode block in 2008 through 2011 consisting of HMC analysis, rock and soil sampling, and ground geophysics. Rock sampling was focused on the areas surrounding the existing Motherlode, Sunset, and Greyhound pits, with seven samples returning assays greater than 5 g/t Au.
Ground geophysics and an HLEM survey over the Motherlode North area indicated an interesting magnetic low-high trend of NW orientation coincident with an EM anomaly. Drilling during 2011 yielded a new polymetallic discovery of Au-Ag-Pb-Zn-Cu north of the historic Motherlode Pit. The best intersections obtained to date include 6.07 g/t Au, 15.13 g/t Ag, 0.2% Pb and 0.7% Zn over 4.5 m core length, and 4.11 g/t Au, 6.88 g/t Ag, and 1.04% Zn over 2.85 m core length in two from two separate drill holes.