Bluestone Resources Inc. announced an update on the exploration and in-fill drilling program currently underway at its Cerro Blanco Gold project in Guatemala. The recent results include many high-grade underground channel sample assays, e.g. 270.5 g/t Au and 637 g/t Ag over 2.5 m, that continue to confirm the bonanza-style veins and vein swarms at Cerro Blanco. Three drill rigs are currently operational on surface, and an underground in-fill drill program has now commenced. The underground drill program will utilize the three kilometres of underground development that was completed, as part of a USD 230 million investment in the Cerro Blanco Gold project by previous operators. Additional assays were received for 90 underground chip channel samples of known and previously unmapped veins including several remarkably high grades. Some 51% of samples assayed graded equal or greater than 3 g/t, with an average of 35.5 g/t Au and 90 g/t Ag over widths ranging from 1 to 3 m. Channel samples are cut with a diamond rock saw to ensure they are consistent and representative under industry best practice, with the objective of inclusion into the updated mineral resource estimate planned for mid-2018.