Royal Road eyes underground mine as Colombia drilling resumes

Royal Road Minerals (TSXV: RYR) said recent drilling at its Guintar-Aleman-Margaritas gold-silver-copper project in Colombia suggests the deposit could support a bulk-tonnage underground mine. Hole GUI-DD-028 cut 76 metres of 2.1 grams gold, 0.4% copper and 7.9 grams silver from...