Gran Colombia Announces Multiple High-Grade Drill Results From the 2021 In-Mine and Brownfield Drilling Campaigns at Its Segovia Operations; Success Continues at the Brownfield Vera Project Including 31.78 g/t Au and 8,150.0 g/t Ag Over 0.30 Meters TORONTO, June 09, 2021 (GLOBE NEWSWIRE) -- Gran Colombia Gold Corp. (TSX: GCM, OTCQX: TPRFF) (“Gran Colombia” or the “Company”) announced today multiple high-grade intercepts from the latest 62...