On the second week of September, five companies posted results from their drilling programs on six Mexican projects. By a fair margin Alamos Gold results from drilling at Mulatos, in Sonora, are the most striking. Alamos is defining high-grade underground mineable gold mineralization on the Puerto del Aire deposit, adjacent to the Mulatos pit, and at the Capulin target, some 4 km from it. Mulatos is one of the most productive high sulfidation mineralization districts in Mexico, and Alamos Gold holds a sizable part the district.

Vizsla Silver’s Panuco project in Sinaloa, Prime Mining’s Los Reyes property, also in Sinaloa, Gold Resource’s Don David mine in Oaxaca and Avino Silver’s Avino mine in Durango are part of intermediate sulfidation epithermal systems, strongly structurally controlled. On Avino, the company is trying to establish if the Avino vein could connect to a porphyry copper environment.