Tyro Vein System Evolves To A Plus 3km Strike Gold Target

OTTAWA - Gold79 Mines Ltd. announced a revised geologic model for the Tyro vein system at its Gold Chain project, northwest Arizona. Bonanza' gold grades of plus 10 g/t Au have been identified along the Tyro mine segment and are hosted by classic low-sulphidation epithermal vein textures over a strike length of 800 meters. A broad zone of sheeted quartz-chalcedony-adularia-calcite occupying a damage zone from 10 to 60 meters wide defines the emerging resource. Transverse, intra- to post-mineral faults/veins have displaced the vein system and effectively concealed significant portions of the vein's potentially productive horizon.

The Company has been focused on building a plus 2 g/t Au surface mineable resource along the Tyro 'Bonanza' zone. Recent exploration studies have extended the Tyro structural corridor both to the NE and SW. It now appears that the Tyro vein system has a cumulative strike length of 3.4km, greater than 3x the current drilled strike length of approximately 800m. At least 7 vein segments, ranging in length from 300m to over 1km and mineral widths from 20 to 60 meters, have been mapped and sampled.

Derek Macpherson, President & CEO, said, "Our continued work at Tyro is methodically extending the vein's strike to the northeast and southwest for over 3km. Recent drilling, highlighted by 44.2m at 2.01 g/t Au from hole GC23-24 and 9.1m at 51.09 g/t Au from hole GC23-28, demonstrated to us that Tyro's historical productive zone hosts good continuity of plus 2 g/t Au of low-sulphidation epithermal vein along strike and to depth. Drilling has demonstrated the potential for a from surface resource over the 800m drilled strike length at well above average open-pit grades at the historical Tyro mine, while our work along strike suggests that this could be a much larger gold system."