Guardian Metal Resources, a mineral exploration and development company specialising in tungsten in Nevada, US, has released an update on its Garfield gold-silver-copper project in the Walker Lane Mineral Belt. Recent surface sampling in the Power Line zone at the Garfield project has revealed additional areas of high-grade gold, silver and copper mineralisation. Rock chip samples collected from quartz-barite epithermal veins in this zone returned notable results, including sample LCGF42, which assayed 1 ...