Early 1960's - 1998: Asarco, HBOG, Abitibi-Price, BP Canada, Noranda
- base metal exploration and discovery of gold-bearing quartz veins, airborne EM-Mag, prospecting, geochem surveys, mapping by NL government, and 47 DDH's (~ 6,000m).
1998 - 2009: Mountain Lake Resources and JV partners Noranda & Richmont
- prospecting, airborne VLF-Mag, 90 ddh's (~17,000m), and structural study by InnovExplo (2006) concluding Leprechaun Gold deposit similar to Archean quartz-tourmaline lode gold deposits of Val-d'Or (Abitibi).
2010 - 2014: Marathon Gold Corporation
- focused prospecting, trenching, mapping, drilling (531 ddh's & ~ 89,400M NQ-core), discovered Frank, Sprite and Marathon Zones, initial and updated NI 43-101 resource estimates for Leprechaun Gold Deposit and Victory Gold Deposits.
2015 - Present: Marathon Gold Corporation
- completed 4,300m winter 2015 drilling in Marathon Deposit, updated mineral resource estimate announced April 30, 2015 with 30% increase in M & I Resources (Leprechaun, Sprite, Marathon and Victory Gold Deposits) to 1,060,100 oz Au @ 2.20 g/t Au and Inferred 199,800 oz Au @ 2.85 g/t Au, Q2-Q4 ongoing exploration program.