It's been an incredible start to the year for the junior gold sector (GDXJ) as several names have managed to put up triple-digit-returns, dwarfing the performance of the mining indexes. While some of the companies up more than 250% year-to-date are deserving of these returns with significant discoveries, others are running up on the back of promotion and unbridled enthusiasm, suggesting we're seeing a bit of froth in the sector. Fortunately, De Grey Mining (DGMLF) belongs to the former group, as the company's Mallina Gold Project [MGP] in Western Australia continues