Pinnacle Silver & Gold Corp (TSX-V:PINN, OTCQB:PSGCF, FRA:P9J) has reported assay results from its ongoing underground drilling program at the Potrero gold-silver property in Durango, Mexico, with drilling at the historic Pinos Cuates mine extending the known strike length of mineralization to at least 70 metres. The company has drilled 58 of a planned 108 holes to date, with assays received for the first 37. The program consists of short, closely spaced holes drilled from historic mine workings to better d ...